Rexing Quality Eggs v. Rembrandt Enterprises, Inc. ( 2021 )


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  •                              In the
    United States Court of Appeals
    For the Seventh Circuit
    ____________________
    Nos. 20-1726 & 20-1727
    REXING QUALITY EGGS,
    Plaintiff-
    Counterclaim Defendant-
    Appellant,
    Cross-Appellee,
    v.
    REMBRANDT ENTERPRISES, INC.,
    Defendant-
    Counterclaim Plaintiff-
    Appellee,
    Cross-Appellant,
    v.
    JOSEPH L. REXING, et al.,
    Counterclaim Defendants-
    Appellants,
    Cross-Appellees.
    ____________________
    Appeals from the United States District Court for the
    Southern District of Indiana, Evansville Division.
    No. 3:17-cv-00141-JMS-MPB — Jane Magnus-Stinson, Judge.
    ____________________
    2                                              Nos. 20-1726 & 20-1727
    ARGUED JANUARY 14, 2021 — DECIDED APRIL 22, 2021
    ____________________
    Before RIPPLE, KANNE, and ROVNER, Circuit Judges.
    RIPPLE, Circuit Judge. On August 16, 2017, Rexing Quality
    Eggs and owners Joseph and Leo Rexing (collectively “Rex-
    ing”) filed a declaratory judgment action in Vanderburgh
    County, Indiana. They sought a ruling that Rexing was ex-
    cused from its obligations to purchase eggs under a contract
    that it had with Rembrandt Enterprises, Inc. (“Rembrandt”).
    1
    Rembrandt removed the action to federal district court, an-
    swered the complaint, and filed a counterclaim seeking
    damages for Rexing’s repudiation of the contract. Rem-
    brandt requested damages, attorneys’ fees, and interest.
    Following discovery, Rembrandt moved for summary
    judgment on Rexing’s claims as well as on its own counter-
    claim. The district court granted Rembrandt’s motion on lia-
    bility, but concluded that there were genuine issues of tria-
    ble fact as to the damages Rembrandt had suffered because
    of Rexing’s repudiation.
    After a trial on the damages issue, a jury awarded Rem-
    brandt $1,268,481 for losses on eggs it had resold and anoth-
    er $193,752 for losses on eggs that it was not able to resell.
    Rembrandt then requested that the court award it interest,
    attorneys’ fees, and costs. The district court denied the re-
    quest; it determined that the interest term in the parties’
    agreement was usurious, and, as a result, Rembrandt was
    1 The district court had jurisdiction under 
    28 U.S.C. § 1332
    (a).
    Nos. 20-1726 & 20-1727                                       3
    not entitled to contractual interest or to attorneys’ fees. The
    district court therefore entered final judgment in the amount
    of $1,522,302.61. Rexing appealed the damages award in fa-
    vor of Rembrandt, and Rembrandt cross-appealed the denial
    2
    of contractual interest and attorneys’ fees.
    We now affirm the district court’s judgment on the dam-
    ages award. The district court properly concluded that the
    resale remedy under Iowa’s version of the Uniform Com-
    mercial Code (“UCC”), 
    Iowa Code § 554.2706
    , was the ap-
    propriate mechanism for calculating Rembrandt’s damages.
    Moreover, Rexing waived its arguments challenging the ju-
    ry’s damage award by not presenting them to the district
    court in a postverdict motion.
    As for Rembrandt’s counterclaim for interest and attor-
    neys’ fees, Rembrandt is correct that the parties’ agreement
    fell within the “Business Credit Exception” to Iowa’s usury
    statute, 
    Iowa Code § 535.5
    (2)(a)(5). We therefore reverse the
    district court’s denial of Rembrandt’s request for interest and
    fees, and we remand for further proceedings on these mat-
    ters.
    I
    BACKGROUND
    A.
    Joseph and Leo Rexing are brothers who have owned
    various agribusinesses; among those is Rexing Quality Eggs,
    which is the unincorporated trade name under which the
    2 Our jurisdiction is secure under 
    28 U.S.C. § 1291
    .
    4                                             Nos. 20-1726 & 20-1727
    Rexing brothers have bought and sold eggs for more than
    3
    twenty years. Before their contract with Rembrandt, the
    Rexings bought and resold eggs one load at a time, mostly to
    institutional and warehouse purchasers. They never had en-
    tered into a fixed-term contract for the purchase of eggs.
    Joseph’s son, Dylan Rexing, was Vice President of Opera-
    tions for Rexing Quality Eggs and had responsibility for ne-
    gotiating a contract with Rembrandt for the purchase of
    eggs. The Purchase Agreement dated September 2, 2016
    (“Purchase Agreement”) provided for the purchase of eggs
    on a weekly basis and contemplated that Rembrandt would
    source eggs primarily from farms in Tipton, Missouri, as set
    forth in Paragraph B:
    Volume: Purchaser shall purchase, and Rem-
    brandt will supply, twelve (12) loads of Shell
    Eggs per week during the Term … commenc-
    ing the week of October 3, 2016. For purposes
    of this Agreement, a “load” is comprised of no
    less than 25 pallets … with approximately 900
    dozen Shell Eggs per pallet. The Parties have
    agreed to permit Rembrandt a period of time
    to meet this schedule. Without limitation, the
    schedule below is a tentative ramp up schedule
    expected to be in place for deliveries through
    3 Although Rexing challenges the district court’s summary judgment
    ruling, it does “not challenge the district court’s statement of facts” and
    employs the district court’s facts in its arguments on appeal. Appellants’
    Br. 4 n.3. We similarly borrow generously from the district court’s recita-
    tion of facts, see R.110, and supplement only as needed.
    Nos. 20-1726 & 20-1727                                                 5
    the week of December 25 (the “Ramp Up Peri-
    od,”) whereby Rembrandt has the right to
    source certain loads from other locations, and
    to supply less than twelve loads per week, un-
    til all loads can be supplied from Tipton, Mis-
    4
    souri location … .
    Paragraph B also included a table establishing how many
    loads of eggs per week could be supplied from non-Tipton
    locations; the number ranged from one to three. The Pur-
    chase Agreement did not anticipate that Rembrandt would
    supply eggs from non-Tipton sources after February 12,
    5
    2017. The parties, however, do not dispute that, prior to
    Rexing’s repudiation, approximately ten percent of the eggs
    6
    delivered to Rexing came from locations other than Tipton.
    The price designated in the Purchase Agreement was $0.85
    7
    per dozen if supplied from Tipton. If the eggs were sup-
    8
    plied from another location, the price was reduced to $0.80.
    4 Purchase Agmt. at 1 (emphasis removed). See R.1-1 at 8–13 (full text of
    the Purchase Agreement). We set forth in the text only those sections of
    the Purchase Agreement most pertinent to the parties’ arguments and,
    for ease of reference, use the internal pagination of the Purchase Agree-
    ment.
    5 See Purchase Agmt. at 1.
    6 See Appellants’ Br. 19; Trial Tr. I at 156–57.
    7 See Purchase Agmt. at 2 (para. C).
    8 See 
    id.
     The price of eggs shipped from other sites was discounted to
    cover increased shipping costs. See R.78 at 1–2 (Decl. of Riley Pohlman,
    Rembrandt Inventory Control and Co-manufacturing Mgr.).
    6                                   Nos. 20-1726 & 20-1727
    Other relevant paragraphs of the Purchase Agreement
    covered payment and warranty terms; these provided:
    E. Payment: Payment terms are Net 21 days
    from invoice date. Failure of Purchaser to
    pay any past due invoice shall give Rem-
    brandt the right to suspend future ship-
    ments until previous shipments are paid
    for, and/or, at the option of Rembrandt, to
    terminate this Agreement by giving written
    notice thereof to Purchaser. Past due in-
    voices shall be subject to an interest charge
    of one percent (1%) per month.
    …
    I. Warranties: Rembrandt represents and
    warrants to Purchaser that all Shell Eggs
    sold to Purchaser pursuant to this Agree-
    ment will not be adulterated or misbranded
    within the meaning of the Federal Food,
    Drug and Cosmetic Act, as amended, and
    not be an article which may not be intro-
    duced into interstate commerce under the
    provisions of Section 404 or 405 of such act.
    NO OTHER REPRESENTATION OR
    WARRANTIES OF ANY KIND OR
    NATURE, WHETHER EXPRESS OR
    IMPLIED, OR OTHERWISE ARE MADE
    OR INTENDED BY REMBRANDT WITH
    RESPECT TO THE SHELL EGGS, AND
    REMBRANDT SPECIFICALLY DISCLAMS
    ANY            WARRANTIES                OF
    Nos. 20-1726 & 20-1727                                                 7
    MERCHANTABILITY OR FITNESS FOR A
    9
    PARTICULAR PURPOSE.
    Damages for breach of the Purchase Agreement were limited
    by Paragraph M, which stated: “Other Terms: In no event
    shall Rembrandt be responsible for any lost profits, or any
    special, indirect, incidental, consequential, or punitive dam-
    ages, even if advised in advance of the possibility of such
    10
    damages.” The Purchase Agreement, however, provided
    for attorneys’ fees and costs to the prevailing party “in any
    11
    dispute arising under this Agreement.
    Finally, Exhibit A to the Purchase Agreement set forth
    the specifications for the type and quality of eggs to be sup-
    plied. The Purchase Agreement required that the average
    weight for each load be between forty-seven and fifty-two
    pounds, that the load would be inspected for quality and
    compliance by Rexing, and that Rexing would receive a dis-
    count for loads in which less than 91.5% of the eggs failed to
    12
    conform to specifications.
    9 
    Id.
     at 2–3 (emphasis removed).
    10 
    Id. at 3
     (emphasis removed). The Purchase Agreement also provided
    that it should be governed and construed under Iowa law. See 
    id.
     (para.
    L).
    11 
    Id.
     (para. J).
    12 Regarding quality, the Purchase Agreement provided: “With respect
    to each load of Shell Eggs, ninety-one and a half percent (91.5%) of such
    Shell Eggs shall grade out as Grade A, and specifically, no more than
    eight and one half percent (8.5%) of any load of Shell Eggs shall grade
    (continued … )
    8                                                Nos. 20-1726 & 20-1727
    Rexing received its first shipment of eggs at the end of
    September 2016. After a “Ramp Up Period” agreed to by the
    parties, Rexing received twelve truckloads of eggs each
    week. Rexing was displeased with the quality of the initial
    shipments, and Dylan Rexing sent Rembrandt emails in Oc-
    tober 2016, complaining of poor egg quality. Both Rexing
    and Rembrandt sent representatives to Tipton, the source of
    most of the eggs. Shell quality and equipment emerged as
    issues, and the Tipton farms made several changes to
    equipment and bird nutrition. However, as of November
    2016, Rexing still was displeased with the percentage of eggs
    that were not meeting the quality specifications.
    13
    In January 2017, a Mycoplasma gallisepticum (“MG”)
    outbreak hit the Tipton area. Birds at the Tipton farms tested
    positive for MG, and, in April 2017, Rembrandt began to eu-
    thanize its birds at one of the Tipton farms. Between April
    and June 2017, Rembrandt began supplying eggs to Rexing
    from farms outside of Tipton with greater frequency. In late
    May and early June, shipments were underperforming by
    over twenty percent. Rexing’s invoices for these shipments
    included proper discounts for these underperforming loads.
    ( … continued)
    out as restricts or losses.” 
    Id. at 5
    . Rexing was entitled to a price credit of
    up to ten percent for loads that did not meet these requirements. See 
    id.
    13 “MG is a bacterium which causes chronic respiratory disease in chick-
    ens.” R.110 at 12 n.5 (citing National Poultry Improvement Plan, U.S. Dep’t
    of Ag. (Apr. 11, 2017), https://www.aphis.usda.gov/aphis/ourfocus/
    animalhealth/nvap/NVAP-Reference-Guide/Poultry/
    National-Poultry-Improvement-Plan).
    Nos. 20-1726 & 20-1727                                      9
    When Rexing signed the Purchase Agreement, it had in-
    tended to resell the eggs to Hickman’s Family Farms, which
    would in turn resell the eggs to a large retailer. Rexing and
    Hickman’s, however, never entered a formal agreement. Af-
    ter the Purchase Agreement was signed, Hickman’s both in-
    creased its own production and faced a decreased demand
    for cage-free eggs. Consequently, it stopped purchasing eggs
    from Rexing, and, in turn, Rexing notified Rembrandt that it
    would need to cancel orders due to decreased demand.
    Rembrandt responded that unless it could find another buy-
    er, it expected Rexing to take the full loads as required by
    the Purchase Agreement.
    After refusing several loads, Dylan Rexing emailed Rem-
    brandt on June 5, 2017, stating that Rexing would not be able
    to take their full volume of eggs. Two days later, counsel for
    Rembrandt sent a letter to Rexing demanding assurances
    that Rexing would accept egg loads in compliance with the
    terms of the Purchase Agreement. The letter “advised that
    Rembrandt intend[ed] to resell the shell eggs in the best
    manner available” and, if it did not receive assurances,
    would “consider all options, including permanently remov-
    14
    ing the flock supplying the shell eggs.”
    On June 9, 2017, counsel for Rexing responded to the
    demand for assurances. He expressed the opinion that the
    eggs Rembrandt had been supplying violated an express
    warranty of quality in the Purchase Agreement and that
    Rexing’s refusal to take more loads was excused through the
    Purchase Agreement’s force majeure clause.
    14 R.72-24 at 2.
    10                                         Nos. 20-1726 & 20-1727
    Having failed to receive assurances from Rexing, Rem-
    brandt attempted to resell the eggs. Rembrandt elected not
    to resell Rexing’s eggs on the national egg exchange because
    it was concerned that the market would be flooded and that
    prices would drop. Rembrandt informed the exchange,
    however, that it had supply available for interested buyers
    and eventually resold 133 of the remaining 198 loads
    through private sales. Eighty-two of those loads were
    sourced from Tipton farms, which resulted in the lowest
    15
    freight cost for the buyers. Rembrandt used the unsold,
    remaining sixty-five loads to satisfy its existing commit-
    ments to its liquid and powdered egg customers. For these
    sixty-five loads, Rembrandt invoiced Rexing for the differ-
    ence between the contract price under the Purchase Agree-
    ment and “the actual market prices at which Rembrandt was
    16
    able to sell loads to third parties at the same time.” Rexing
    refused to pay the invoiced amounts.
    B.
    1. Rembrandt’s summary judgment motion
    Rexing filed this action in Superior Court in Vander-
    burgh County, Indiana, asking that the court declare that it
    was excused from purchasing eggs from Rembrandt under
    the Purchase Agreement’s force majeure clause and that its
    repudiation was justified because Rembrandt had violated
    15 Following Rexing’s repudiation, Tipton hens continued to be plagued
    with MG, and Rembrandt depopulated several barns at Tipton from July
    through September 2017.
    16 R.78 at 5.
    Nos. 20-1726 & 20-1727                                          11
    express warranties. Rembrandt removed the action to the
    district court on diversity grounds. Once in the district court,
    Rembrandt answered the complaint and filed a counter-
    claim, alleging both a count for breach of contract and a
    count for breach of a credit agreement and requesting dam-
    17
    ages, attorneys’ fees, and interest.
    Following discovery, Rembrandt moved for summary
    judgment on all counts of Rexing’s complaint, as well as on
    its counterclaim for breach of contract. The district court
    granted Rembrandt’s motion with respect to liability but de-
    nied Rembrandt summary judgment as to the amount of
    damages.
    The court first determined that Rembrandt had not
    breached any express warranty that the eggs would be
    sourced from the Tipton farms; consequently, its sourcing
    the eggs from alternative locations was not a valid basis for
    Rexing’s repudiation. Moreover, the court explained,
    even assuming it were a breach for Rembrandt
    to source eggs from outside of Tipton after the
    Ramp Up Period, Rexing would not have been
    excused from continued performance under
    the purchase agreement. Iowa’s UCC permits a
    buyer to cancel a contract “[w]henever non-
    conformity or default with respect to one or
    more installments substantially impairs the
    value of the whole contract.” 
    Iowa Code § 554.2612
    (3). Rexing, however, [had] ma[de]
    17 Rembrandt abandoned its cause of action for breach of the credit
    agreement prior to trial. See R.184 at 1–2.
    12                                                  Nos. 20-1726 & 20-1727
    no showing or argument that having to spend
    more on delivery or packaging from certain lo-
    cations would impair in any way the value of
    the whole contract. At most, it may [have
    made] performance more expensive for Rex-
    ing, but cancellation [was] not permitted for
    18
    this reason.
    The court also concluded that Rexing could not have “re-
    scinded the contract based upon a breach of the location
    term. Rescission,” the court explained, “is appropriate only
    where ‘(1) the injured party [is not] in default, (2) the breach
    [is] substantial and go [sic] to the heart of the contract, and
    19
    (3) remedies at law [are] inadequate.’” However, Rexing
    had not demonstrated a genuine issue of fact regarding these
    requirements because (1) “Rexing had underpaid for certain
    deliveries of eggs and was therefore in default,” (2) “any al-
    leged breach did not reach the heart of the contract,” and (3)
    “any breach could … be remedied by damages for the in-
    20
    creased expense.” “In sum,” the court concluded, “any
    breach of the location term would not have excused Rexing’s
    21
    continued performance under the purchase agreement.”
    Moreover, the court observed that the only damages that
    Rexing would have incurred were for “shipping and packag-
    18 R.110 at 22–23 (first alteration in original).
    19 
    Id. at 23
     (first, second, and fourth alterations in original) (quoting
    Clark v. McDaniel, 
    546 N.W.2d 590
    , 595 (Iowa 1996)).
    20 
    Id.
    21 
    Id.
    Nos. 20-1726 & 20-1727                                                   13
    22
    ing.” However, not only did Paragraph M of the Purchase
    Agreement limit incidental and consequential damages, the
    Purchase Agreement provided that Rexing would receive a
    $0.05 discount per dozen for eggs sourced from outside of
    23
    Tipton, and Rexing had received this discount.
    After concluding that “Rembrandt [wa]s … entitled both
    to summary judgment on Rexing’s claim for a declaratory
    judgment that its performance was excused and to partial
    summary judgment on its own claim as to Rexing’s breach of
    the purchase agreement by refusing to accept loads it was
    24
    obligated to purchase,” the court addressed Rembrandt’s
    claims for damages. The court set forth the applicable dam-
    age provisions of Iowa’s version of the UCC, specifically Io-
    wa Code §§ 554.2703, 554.2706, and 554.2708. Turning to the
    parties’ arguments, the court concluded that it could “be
    brief … because Rembrandt f[ell] short of establishing the
    25
    amount of its damages as a matter of law.” Specifically, it
    noted that, with respect to the damages related to resale,
    summary judgment was inappropriate because what consti-
    22 Id. (internal quotation marks omitted).
    23 The district court also rejected Rexing’s claim that its performance
    was excused based on the force majeure clause and commercial imprac-
    ticability. See id. at 30–35. Rexing does not challenge those rulings on ap-
    peal.
    24 Id. at 35.
    25 Id. at 39.
    14                                           Nos. 20-1726 & 20-1727
    tutes a commercially reasonable resale is a question of fact
    26
    reserved for the jury. It did note, however, that
    summary judgment [wa]s not defeated merely
    because Rembrandt elected to source some
    loads from outside of Tipton. … [F]or purposes
    of Rembrandt’s resale remedy, the case law es-
    tablishes that fungible goods such as cage-free
    white eggs may be substituted as long as they
    are reasonably identified to the contract. Rea-
    sonable identification to the contract looks to
    the type and quality of the goods, and Rexing
    ma[de] no argument that the eggs sourced
    from outside Tipton were any different from
    the Tipton eggs. Therefore, Rembrandt was not
    precluded from substituting loads from other
    sources to calculate its damages pursuant to
    that remedy election, though whether the sales
    were commercially reasonable; whether Rem-
    brandt’s damages calculations properly ac-
    counted for “expenses saved in consequence of
    the buyer’s breach,” and whether Rexing was
    properly credited to the extent the resold loads
    fell beneath the threshold quality level re-
    27
    main[ed] at issue for trial.
    The parties therefore proceeded to trial on Rembrandt’s
    claim for damages.
    26 Id.
    27 Id. at 41 (citation omitted).
    Nos. 20-1726 & 20-1727                                      15
    2. Pretrial and trial proceedings
    Prior to trial, Rembrandt moved in limine to prevent the
    jury from hearing testimony from Rexing’s expert, Dr. James
    Woods, that Rembrandt’s damage estimate was overstated
    because it included sales of non-Tipton eggs. Rembrandt ar-
    gued that not only did Dr. Woods’s proposed testimony
    constitute an “improper legal conclusion,” but “the Court
    ha[d] already rejected this argument in its summary judg-
    ment Order”:
    The Court held that because the Rexings did
    not dispute that all cage-free white eggs are
    fungible, and Rembrandt was permitted to
    substitute cage-free eggs from any location up-
    on the Rexings’ repudiation. Additionally, pri-
    or to repudiation, the Rexings requested eggs
    from other [sic] on numerous occasions and
    knowingly accepted each delivery of
    28
    non-Tipton eggs.
    The district court denied the motion in limine as it related to
    general information about “site-sourcing,” noting that the
    evidence was relevant to the commercial reasonableness of
    29
    Rembrandt’s actions; however, it did grant the motion in
    limine with respect to Dr. Woods’s testimony because it be-
    lieved that his testimony included legal conclusions. It ex-
    plained that
    28 R.144 at 3 (citation omitted).
    29 R.180 at 38.
    16                                            Nos. 20-1726 & 20-1727
    [i]n multiple places in his report, Dr. Woods
    asserts what he believes to be the proper
    measure or formula for Rembrandt’s damages.
    Aside from the fact that the above assertions
    delve into matters of law, [his] formulas are
    different, or could be construed to be different,
    from the Court’s jury instructions. Iowa law
    30
    sets forth the measure of damages.
    A two-day trial was held in November 2019. At the close
    of Rembrandt’s case, Rexing moved for a directed verdict
    under Federal Rule of Civil Procedure 50(a). Rexing main-
    tained that Rembrandt had failed to present any “credible”
    or “documented evidence” that the average case weights for
    the loads of eggs that Rembrandt resold were between for-
    31
    ty-seven and fifty-two pounds, as required by Exhibit A to
    the Purchase Agreement. Rexing noted that the jury would
    be instructed that “the eggs sold ha[d] to conform to the par-
    32
    ties’ contract.” Rexing submitted that, because there was no
    evidence that the eggs conformed to the terms of the Pur-
    chase Agreement, Rembrandt was “not entitled to damag-
    33
    es.” The district court denied Rexing’s motion. Prior to jury
    instructions and closing arguments, Rexing renewed its Rule
    30 R.197 at 2 n.1 (citations omitted).
    31 Trial Tr. II at 370.
    32 Id. at 371.
    33 Id.
    Nos. 20-1726 & 20-1727                                      17
    50 motion without elaboration. The court again denied the
    34
    motion.
    The court then instructed the jury on the damages it
    could award for losses resulting from Rembrandt’s resale of
    Rexing’s eggs to other buyers. Specifically, the court in-
    structed the jury that, in order to recover under the resale
    damages method, Rembrandt had to prove by a preponder-
    ance of the evidence: “One, the resales were made in good
    faith and in a commercially reasonable manner; Two, the
    eggs sold conformed to the parties’ contract; Three, Rem-
    brandt provided Rexing Eggs reasonable notice under the
    35
    circumstances of Rembrandt’s intent to resell the eggs.”
    The jury also was instructed on the meaning of commercial
    reasonableness: “[A] resale is commercially reasonable if it
    was fair, done in good faith, and corresponds to commonly
    36
    accepted commercial practice.” Additionally, “[e]ach as-
    pect of the resales must be commercially reasonable, includ-
    37
    ing the method, manner, time, place, and terms.” Finally,
    the court explained that, “[i]n making the resales, Rem-
    brandt was permitted to depart from the terms and condi-
    tions of the original contract to the extent such departure
    38
    was ‘commercially reasonable’ in the circumstances.”
    34 See id. at 385.
    35 Id. at 394.
    36 Id.
    37 Id. at 394–95.
    38 Id. at 395.
    18                                     Nos. 20-1726 & 20-1727
    Regarding Rembrandt’s losses resulting from eggs that it
    was unable to resell, the court instructed the jury that it
    could award Rembrandt damages established under “the
    39
    market price damages method.” According to this method,
    “Rembrandt’s damages [we]re the difference between the
    contract price and the market price at the time the eggs were
    40
    to be delivered to Rexing Eggs.” “The term ‘market price,’”
    the court continued, “means the cash sales price between a
    voluntary, willing seller who is not forced to sell, and a vol-
    untary, willing buyer who is not forced to buy. It assumes a
    41
    buyer and seller are bargaining freely in the open market.”
    The jury returned a verdict in favor of Rembrandt for re-
    sale damages in the amount of $1,268,481 and market dam-
    42
    ages in the amount of $193,752. Following the verdict, Rex-
    ing did not make a motion for judgment as a matter of law
    under Federal Rule of Civil Procedure 50(b), nor did it move
    for a new trial under Federal Rule of Civil Procedure 59.
    3. Posttrial Proceedings
    After Rembrandt prevailed at trial, it moved for attor-
    neys’ fees, prejudgment interest, and costs. Specifically,
    Rembrandt sought $420,798.39 in prejudgment interest un-
    der Paragraph E of the Purchase Agreement which required
    payment within twenty-one days of the invoice date, and
    39 Id.
    40 Id. at 395–96.
    41 Id. at 396.
    42 See R.207.
    Nos. 20-1726 & 20-1727                                                       19
    made “[p]ast due invoices … subject to an interest charge of
    43
    one percent (1%) per month.”
    Following briefing on the motion, the district court asked
    for supplemental briefing on the application of Iowa’s usury
    44
    law to the Purchase Agreement. The parties filed their
    submissions, and, with the benefit of their views, the district
    court determined that Paragraph E violated Iowa’s usury
    law. It began its analysis by observing that 
    Iowa Code § 668.13
     provides that, “[i]f the interest rate is fixed by a con-
    tract on which [a] judgment or decree is rendered, the inter-
    est allowed shall be at the rate expressed in the contract, not
    45
    exceeding the maximum rate permitted under 535.2.” Ap-
    plying the methodology set forth in § 535.2(3), the court con-
    cluded that the applicable default rate was 3.5%.
    The court then addressed whether the Purchase Agree-
    ment fell within the exceptions set forth in 
    Iowa Code § 535.2
    . Among these is the “Business Credit Exception” that
    covers “[a] person borrowing money or obtaining credit for
    46
    business or agricultural purposes.” The court further ex-
    plained that, assuming the Purchase Agreement did not fall
    within a statutory exception, Iowa law penalizes those who
    seek to enforce a usurious interest rate:
    43 R.217 at 12 (first alteration in original) (quoting Purchase Agmt. at 2).
    44 See R.243 at 2.
    45 R.251 at 4 (alterations in original) (quoting 
    Iowa Code § 668.13
    ).
    46 
    Id. at 6
     (alteration in original) (quoting 
    Iowa Code § 535.2
    (2)(a)(5)).
    20                                         Nos. 20-1726 & 20-1727
    If it is ascertained in an action brought on a
    contract that a rate of interest has been con-
    tracted for, directly or indirectly, in money or
    in property, greater than is authorized by this
    chapter, the rate shall work a forfeiture of eight
    cents on the hundred by the year upon the
    amount of the principal remaining unpaid up-
    on the contract at the time judgment is ren-
    dered, and the court shall enter final judgment
    in favor of the plaintiff and against the defend-
    ant for the principal sum remaining unpaid
    without costs, and also against the defendant
    and in favor of the state, to be paid to the
    treasurer of state for deposit in the general
    fund of the state, for the amount of the forfei-
    ture. If unlawful interest is contracted for the
    plaintiff shall not have judgment for more than
    the principal sum, whether the unlawful inter-
    47
    est is incorporated with the principal or not.
    Turning to the application of these provisions to the Pur-
    chase Agreement, the district court evaluated the case law
    cited by Rembrandt, but determined that the Purchase
    Agreement was unlike the arrangements in those authorities.
    The Purchase Agreement “did not call for a sale of goods on
    credit, rather it established a delayed payment mechanism
    due to the unique nature of the parties’ agreement,” specifi-
    cally the right of Rexing to inspect the eggs and remit pay-
    47 
    Id. at 5
     (quoting 
    Iowa Code § 535.5
    ).
    Nos. 20-1726 & 20-1727                                       21
    48
    ment adjusted to the quality level of the load. Thus, the dis-
    trict court not only denied Rembrandt contractual interest, it
    also imposed the penalty for seeking usurious interest rates
    under 
    Iowa Code § 535.5
     and denied Rembrandt statutory
    interest, attorneys’ fees, and costs.
    Rexing appealed the judgment in favor of Rembrandt,
    and Rembrandt cross-appealed the denial of attorneys’ fees
    and interest.
    II
    REXING’S APPEAL
    Rexing takes exception to the district court’s decision
    with respect to damages on three grounds. First, it maintains
    that the district court misunderstood the nature of the resale
    remedy when a contract involves the sale of future, fungible
    goods. Second, it maintains that the jury’s award of damages
    on the resale remedy cannot stand because the eggs sold af-
    ter Rexing’s repudiation did not conform to the Purchase
    Agreement. Third, turning to the jury’s verdict on the eggs
    that Rexing could not resell, it submits that the jury did not
    have sufficient evidence of market transactions on which to
    base its award. We address each of these contentions in turn.
    A.
    Rexing maintains that the district court erred in its appli-
    cation of the resale remedy under Iowa’s version of the
    48 
    Id. at 14
    .
    22                                              Nos. 20-1726 & 20-1727
    49
    UCC. In its view, this error results from two aspects of the
    court’s reasoning: (1) that Rembrandt “could substitute the
    goods ‘identified to the contract’ for other goods under the
    resale remedy under U.C.C. § 2-706 as long as the substitut-
    50
    ed goods were ‘reasonably identified’ to the contract”; and
    (2) that a seller may “evidence its damages by way of a ‘sub-
    stitute transaction’ as long as the substituted goods are ‘fun-
    51
    gible.’” The combined effect of these conclusions, Rexing
    submits, is problematic because
    substitution effectively allows the seller to in-
    flate its damages in situations where the origi-
    nally identified goods are never finished. By
    substitution, Rembrandt minimized its actual
    damages (by reducing the Tipton Facilities’
    supply), substituted eggs from its existing sur-
    plus supply, and after sufficient sales to
    third-party buyers claimed these sales as sub-
    stitute transactions under § 2-706. … Such a
    ruling does not put a seller in “as good a posi-
    49 The Purchase Agreement provides for application of Iowa law. See
    Purchase Agmt. at 3.
    50 Appellants’ Br. 9.
    51 Id. (referencing Servbest Foods, Inc. v. Emessee Indus., Inc., 
    403 N.E.2d 1
    (Ill. Ct. App. 1980)). The parties refer to this as the Servbest rule. We dis-
    cuss Servbest and the cases that followed in its wake infra note 54 and
    accompanying text.
    Nos. 20-1726 & 20-1727                                                      23
    tion” as if buyer had not breached but in a bet-
    52
    ter position.
    52 Appellants’ Br. 9–10. Although it is clear what Rexing’s argument is,
    there is a dispute among the parties as to which of the district court’s
    rulings is the basis for Rexing’s appeal. Rexing maintains that “[t]he sub-
    stitution issue implicates the district court’s Summary Judgment Order
    as well as a series of pretrial orders … .” 
    Id. at 10
     (citations omitted). As a
    result, it contends that we should apply a de novo standard of review to
    the district court’s analysis. See 
    id. at 11
    . Rembrandt, however, maintains
    that the district court’s summary judgment ruling was limited to liabil-
    ity; according to Rembrandt, “the district court fastidiously avoided rul-
    ing” on any issue related to damages. Appellee/Cross-Appellant’s Com-
    bined Resp. and Opening Br. 13. Instead, Rembrandt submits, Rexing is
    complaining about the commercial reasonableness of its actions follow-
    ing Rexing’s breach. This was an issue submitted to, and resolved by, the
    jury. Rembrandt maintains that the language in the summary judgment
    order on which Rexing relies is mere dicta and without legal effect.
    Although the district court did not issue any definitive rulings on
    damages in its summary judgment order, its articulation of the damages
    standard in that order laid the foundation for later actions, namely its
    ruling on the motions in limine and jury instructions. We review under-
    lying legal issues with respect to motions in limine and jury instructions
    de novo. See United States v. Wade, 
    962 F.3d 1004
    , 1011 (7th Cir. 2020)
    (“We … review de novo the district court’s legal conclusions underlying
    the grant of the motion, though we still review its ultimate decision to
    grant the motion for abuse of discretion.”); Empress Casino Joliet Corp. v.
    Balmoral Racing Club, Inc., 
    831 F.3d 815
    , 835 (7th Cir. 2016) (“We review a
    district court’s choice of jury instruction de novo when the underlying
    assignment of error implicates a question of law … .”).
    According to Rexing, the district court’s legal error also infected the
    district court’s liability determination because this is a case in which “the
    issues of causation and damages are ‘inextricably linked.’” Appellants’
    Combined Reply and Resp. Br. 3 (quoting Shepard v. State Auto. Mut. Ins.
    Co., 
    463 F.3d 742
    , 745 (7th Cir. 2006)). Because we find no error in the dis-
    (continued … )
    24                                              Nos. 20-1726 & 20-1727
    We begin our analysis with the applicable provisions of
    53
    Iowa’s UCC, 
    Iowa Code § 554.2703
    ; it provides:
    Where the buyer wrongfully rejects or revokes
    acceptance of goods or fails to make a payment
    due on or before delivery or repudiates with
    respect to a part or the whole, then with re-
    spect to any goods directly affected and, if the
    breach is of the whole contract (section
    554.2612), then also with respect to the whole
    undelivered balance, the aggrieved seller may:
    1. withhold delivery of such goods;
    2. stop delivery by any bailee as hereafter pro-
    vided (section 554.2705);
    3. proceed under section 554.2704 respecting
    goods still unidentified to the contract;
    4. resell and recover damages as hereafter pro-
    vided (section 554.2706);
    ( … continued)
    trict court’s recitation and application of the law, we have no occasion to
    consider this argument. Nevertheless, we do note that Rexing’s conten-
    tions regarding the effects of the district court’s summary judgment rul-
    ing were not fully developed until its reply brief, and we caution counsel
    that such an approach risks waiver. See, e.g., Williams v. Bd. of Educ. of
    City of Chicago, 
    982 F.3d 495
    , 507 n.30 (7th Cir. 2020) (“[A]rguments
    raised for the first time in a reply brief are waived.”).
    53 Both parties agree that 
    Iowa Code § 554.2703
     provides the basis for
    Rembrandt’s damages. See Appellants’ Br. 11.
    Nos. 20-1726 & 20-1727                                        25
    5. recover damages for nonacceptance (section
    554.2708) or in a proper case the price (section
    554.2709);
    6. cancel.
    Rembrandt availed itself of the resale remedy under 
    Iowa Code § 554.2706
    (1), which provides:
    Under the conditions stated in section 554.2703
    on seller’s remedies, the seller may resell the
    goods concerned or the undelivered balance
    thereof. Where the resale is made in good faith
    and in a commercially reasonable manner the
    seller may recover the difference between the
    resale price and the contract price together
    with any incidental damages allowed under
    the provisions of this Article (section 554.2710),
    but less expenses saved in consequence of the
    buyer’s breach.
    Subsection (2) further requires that “[t]he resale must be rea-
    sonably identified as referring to the broken contract”; how-
    ever, “it is not necessary that the goods be in existence or
    that any or all of them have been identified to the contract
    before the breach.” 
    Id.
     § 554.2706(2); see also Matt Crockett,
    The Law of Sales Under the Uniform Commercial Code § 8.2
    (2020 update) (“The Code makes it clear that the goods need
    not be in existence at the time of resale, and if they are in ex-
    istence they need not have been identified to the original
    sales contract.”). The key is that “every aspect of the sale in-
    cluding the method, manner, time, place and terms must be
    commercially reasonable.” 
    Iowa Code § 554.2706
    (2).
    26                                    Nos. 20-1726 & 20-1727
    The official commentary to the UCC provides guidance
    on how UCC § 2-706 applies in situations where, as here,
    there has been an “anticipatory repudiation of a contract for
    future goods.” UCC § 2-706 cmt. 7 (Am. L. Inst. & Unif. L.
    Comm’n 1977). It states:
    The provision of subsection (2) that the goods
    need not be in existence to be resold applies
    when the buyer is guilty of anticipatory repu-
    diation of a contract for future goods, before
    the goods or some of them have come into ex-
    istence. In such a case the seller may exercise
    the right of resale and fix his damages by “one
    or more contracts to sell” the quantity of con-
    forming future goods affected by the repudia-
    tion. The companion provision of subsection
    (2) that resale may be made although the goods
    were not identified to the contract prior to the
    buyer’s breach, likewise contemplates an antic-
    ipatory repudiation by the buyer but occurring
    after the goods are in existence. If the goods so
    identified conform to the contract, their resale
    will fix the seller’s damages quite as satisfacto-
    rily as if they had been identified before the
    breach.
    Id. Thus, as long as the eggs that Rembrandt used for resale
    “conform” to the Purchase Agreement, it is not necessary
    that the eggs resold by Rembrandt and used as the basis of
    its § 554.2706 remedy be the exact eggs that it would have
    sold to Rexing had Rexing not repudiated the contract.
    Moreover, courts have recognized that, when the resale
    involves fungible goods, there is “no reason why … a seller
    Nos. 20-1726 & 20-1727                                                      27
    could not recover a deficiency award under section 2-706
    based upon a resale of goods other than those identified to
    the contract inasmuch as such a sale would not affect or alter
    the price received for the goods in either a private or public
    sale.” Servbest Foods, Inc. v. Emessee Indus., Inc., 
    403 N.E.2d 1
    ,
    9 (Ill. App. Ct. 1980); Firwood Mfg. Co. v. Gen. Tire, Inc., 
    96 F.3d 163
    , 168 (6th Cir. 1996) (“[W]e find persuasive the rea-
    soning of those courts that allow sellers to substitute fungi-
    ble goods for purposes of resale so long as the goods truly
    are fungible and the resale itself is commercially reasona-
    ble.”); Apex Oil Co. v. Belcher Co. of New York, 
    855 F.2d 997
    ,
    1005 (2d Cir. 1988) (“[A]t least where fungible goods are
    concerned, identification is not always an irrevocable act and
    54
    does not foreclose the possibility of substitution.”).                   Here,
    54 Rexing argues that Apex Oil Co. v. Belcher Co. of New York, 
    855 F.2d 997
    (2d Cir. 1988), found fault with the analysis in Servbest Foods, Inc. v. Emes-
    see Indus., Inc., 
    403 N.E.2d 1
     (Ill. App. Ct. 1980). See Appellants’ Br. 15–16.
    Although Apex Oil did disagree with part of the court’s rationale in
    Servbest, Apex Oil supports application of the resale remedy here. Specifi-
    cally, the court in Apex Oil explained that “the provision regarding non-
    existent and nonidentified goods deals with the special circumstances
    involving anticipatory repudiation by the buyer. Under such circum-
    stances, there can of course be no resale remedy unless the seller is al-
    lowed to identify goods to the contract after the breach.” 
    855 F.2d at
    1003–04 (citation omitted). Thus, Apex Oil explicitly noted that the resale
    remedy was available in circumstances where, as here, Rexing repudiat-
    ed the contract before the goods that would satisfy the later loads had
    come into existence.
    In its brief, Rexing relies most heavily on Nobs Chemical, U.S.A., Inc.
    v. Koppers Co., 
    616 F.2d 212
    , 214 (5th Cir. 1980), which involves a different
    provision of the UCC, § 2-708, applicable to “jobber[s]”—sellers who
    never acquire the contract goods and therefore cannot avail themselves
    of the resale remedy. Id. at 215. Here, it is undisputed that Rembrandt
    (continued … )
    28                                      Nos. 20-1726 & 20-1727
    55
    Rexing acknowledged both in its brief and at oral argu-
    ment that the shell eggs supplied by Rembrandt to Rexing
    were fungible, and, more specifically, that there was no dif-
    ference between the Tipton and non-Tipton eggs. Conse-
    quently, Rexing’s argument that Rembrandt is not entitled to
    the full measure of its resale damages because the eggs were
    not all sourced from Tipton finds no support in the UCC or
    in the interpreting case law.
    Rexing maintains, however, that the rule set forth in
    Servbest is best understood as establishing “a means to quan-
    56
    tify damages through a substitute transaction.” However, it
    continues, “there is no need to resort to a substitute transac-
    tion … to quantify damages where the originally identified
    57
    goods never come … into existence.” According to Rexing,
    “Rembrandt never planned, expended money, or had a rea-
    sonable expectation that Rexing … would take any of its
    58
    other supply at any time.” Because Rembrandt had no ex-
    pectation that Rexing would accept any eggs from
    non-Tipton facilities, it could not use the sale of non-Tipton
    eggs as a basis for damages for lost sales under the contract.
    ( … continued)
    owned and possessed the eggs that were the subject of the Purchase
    Agreement.
    55 See Appellants’ Br. 15.
    56 Id. at 17.
    57 Id. at 18.
    58 Id. at 18–19.
    Nos. 20-1726 & 20-1727                                                  29
    Rexing is incorrect as a matter of law and of fact. 
    Iowa Code § 554.2706
    (2) explicitly makes the resale remedy avail-
    able to sellers even when the goods have not come into ex-
    istence: “[I]t is not necessary that the goods be in existence or
    that any or all of them have been identified to the contract
    before the breach.” We are bound by this unambiguous stat-
    utory language. See State v. Richardson, 
    890 N.W.2d 609
    , 616
    (Iowa 2017) (explaining that if statutory language “is unam-
    biguous, [the] inquiry stops there”).
    Moreover, there was evidence in the record that Rexing
    would, and did, accept non-Tipton eggs. Prior to Rexing’s
    repudiation, approximately ten percent of the eggs delivered
    59
    to Rexing were sourced from locations other than Tipton.
    And, although Rexing lodged many complaints with Rem-
    brandt regarding the quality of the eggs, it has not directed
    us to any part of the record reflecting complaints about the
    60
    origin of the eggs.
    At bottom, Rexing is attempting to create an exception to
    the UCC’s resale remedy that is not tethered to the statutory
    language, the official comments, or the case law. Contrary to
    Rexing’s assertions, the resale remedy is available for con-
    59 See Appellants’ Br. 19 n.5; Trial Tr. I at 156–57.
    60 In its summary judgment order, the district court determined that
    Rexing could not establish that Rembrandt had breached the Purchase
    Agreement by sourcing eggs from places other than Tipton farms be-
    cause Rexing received the agreed-upon discounts for non-Tipton eggs
    and because the contract explicitly precluded incidental and consequen-
    tial damages. See R.110 at 29. Rexing does not challenge that aspect of the
    court’s summary judgment order.
    30                                             Nos. 20-1726 & 20-1727
    tracts involving future sales of fungible products, and the
    seller may recover its damages as long as “every aspect of
    the sale including the method, manner, time, place and
    terms [is] commercially reasonable.” 
    Iowa Code § 554.2706
    (2). The question whether Rembrandt acted in a
    commercially reasonable manner following Rexing’s repudi-
    ation was submitted to the jury. The jury found in favor of
    Rembrandt, and Rexing has not challenged the jury’s finding
    61
    on appeal.
    B.
    As we noted earlier, Rexing also challenges two aspects
    of the jury’s verdict. First, it maintains that there was no evi-
    dence that the eggs sold by Rembrandt met the case-weight
    requirement of the Purchase Agreement. Because the resold
    eggs did not conform to the Purchase Agreement, Rexing
    maintains that those eggs could not form the basis of a resale
    remedy, and Rembrandt should not have received any dam-
    ages under § 554.2706. Second, Rexing submits that there
    was no evidence of actual market transactions to support the
    calculation of damages with respect to the eggs that Rem-
    brandt used for its own purposes. Consequently, according
    to Rexing, the jury lacked critical evidence to calculate Rem-
    brandt’s damages based on market price.
    Rembrandt counters that Rexing has waived any chal-
    lenge to the jury’s verdict by failing to bring a timely motion
    61 In its reply, Rexing steadfastly maintains that it is not challenging this
    aspect of the jury’s damages award, but the district court’s legal ruling
    on damages set forth in its summary judgment order.
    Nos. 20-1726 & 20-1727                                                  31
    under Federal Rule of Civil Procedure 50(b). Rembrandt is
    correct.
    A party must move for judgment as a matter of
    law under Federal Rule of Civil Procedure
    50(a) and renew the motion under Rule 50(b)
    after the jury’s verdict if the party wishes to
    preserve a sufficiency of the evidence challenge
    to a civil verdict. … Failure to file a
    post-verdict motion constitutes a waiver of suf-
    ficiency of the evidence challenges.
    Stegall v. Saul, 
    943 F.3d 1124
    , 1127 (7th Cir. 2019); see also
    Unitherm Food Sys., Inc. v. Swift-Eckrich, Inc., 
    546 U.S. 394
    , 407
    (2006) (“[W]e hold that since respondent failed to renew its
    preverdict motion as specified in Rule 50(b), there was no
    basis for review of respondent’s sufficiency of the evidence
    challenge in the Court of Appeals.”).
    Here, Rexing made a Rule 50(a) motion challenging the
    sufficiency of the evidence on the ground that there was “no
    credible evidence” that the eggs resold by Rembrandt met
    the case-weight requirement set forth in the Purchase
    62
    Agreement. However, it did not file a postverdict motion
    challenging the jury’s verdict on this or any other basis. Its
    failure to do so is fatal to its argument concerning the
    63
    case-weight challenge.
    62 Trial Tr. II at 370–71.
    63 In its reply, Rexing does not assert that it complied with Unitherm
    Food Systems, Inc. v. Swift-Eckrich, Inc., 
    546 U.S. 394
     (2006), by making a
    postverdict motion under Rule 50(b). Nor does it attempt to bring its sit-
    (continued … )
    32                                             Nos. 20-1726 & 20-1727
    Rexing’s challenge to the jury’s damages award for the
    eggs that Rembrandt could not resell is foreclosed for the
    same reason. Rexing failed to file a postverdict motion chal-
    lenging this—or any—aspect of the jury’s damage award.
    ( … continued)
    uation within a recognized exception to Unitherm’s holding. See, e.g.,
    Holder v. Ill. Dep’t of Corr., 
    751 F.3d 486
    , 491–92 (7th Cir. 2014) (holding
    that it would be nonsensical to require a plaintiff to make a Rule 50(b)
    motion when (1) the plaintiff had made a timely motion under Rule
    50(a), (2) the court had taken the motion under advisement, and (3) fol-
    lowing the jury’s verdict, the court had granted the plaintiff’s Rule 50(a)
    motion). Instead, Rexing explains that it
    did not move for a new trial and do[es] not believe a
    new trial is warranted even if the Court finds Rem-
    brandt’s substitutions erroneously inflated its damages.
    … Either this Court or the district court can easily dis-
    tinguish the Tipton and non-Tipton egg loads from
    Rembrandt’s damages. Therefore, while the availability
    of these damages as a matter of law is being questioned,
    the factual basis in the record is clear.
    Appellants’ Combined Reply and Resp. Br. 11 (citation omitted). How-
    ever, a new trial is not the only remedy available under Rule 50(b); the
    district court also may “direct the entry of judgment as a matter of law.”
    Fed. R. Civ. P. 50(b)(3). Here, Rexing asks us to direct a verdict in its fa-
    vor on both the resale and market damages. This is a matter that should
    have been presented to the district court in the first instance. See
    Unitherm, 
    546 U.S. at
    401–02 (explaining the “benefits of the district
    court’s input at [the postverdict] stage” and observing that the import of
    those observations “apply with equal force whether a party is seeking
    judgment as a matter of law or simply a new trial”).
    At oral argument, counsel for Rexing noted that Rexing had filed a
    renewed Rule 50(a) motion at the close of evidence, which it believed
    was sufficient; however, Unitherm clearly holds otherwise.
    Nos. 20-1726 & 20-1727                                                    33
    Consequently, it has waived any challenge to the sufficiency
    64
    of the evidence supporting the jury’s verdict.
    III
    REMBRANDT’S CROSS APPEAL
    In its cross appeal, Rembrandt asks that we review the
    district court’s determination that the interest term in the
    Purchase Agreement is usurious under Iowa law. Rem-
    brandt maintains that the district court’s conclusion is erro-
    neous because the Purchase Agreement falls squarely within
    65
    the “Business Credit Exception” to Iowa’s usury law.                      We
    agree.
    64 Not only did Rexing fail to raise this ground in a Rule 50(b) motion, it
    also failed to articulate this challenge in a Rule 50(a) motion. The lan-
    guage of the rule makes clear that the party challenging the sufficiency of
    the evidence under Rule 50(a) must specify the law and the facts on
    which its motion rests. See Fed. R. Civ. P. 50(a)(2) (“The motion must
    specify the judgment sought and the law and facts that entitle the mo-
    vant to the judgment.”). At trial, Rexing only complained about the suffi-
    ciency of the evidence regarding case weight; it made no challenge to the
    market price calculation. Nevertheless, Rembrandt has not presented this
    argument, and, therefore, we rest our determination solely on Rexing’s
    failure to file a postverdict motion.
    65 Rembrandt maintains that its cross-appeal involves the interpretation
    of Iowa’s usury statute and the Purchase Agreement, both of which are
    reviewed de novo. See Cross-Appellant’s Reply Br. 2–3. Rexing contends
    that the abuse of discretion standard applies to a district court’s decision
    to award or deny prejudgment interest. See Appellants’ Combined Reply
    and Resp. Br. 19–20. However, “[i]f the district court reached its conclu-
    sion because of its interpretation of relevant law, … then we review that
    question of law de novo because a district court’s application of an erro-
    neous view of the law is by definition an abuse of discretion.” Sosebee v.
    (continued … )
    34                                           Nos. 20-1726 & 20-1727
    A.
    
    Iowa Code § 535.4
     sets forth the general prohibition
    against usury: “No person shall, directly or indirectly, re-
    ceive in money or in any other thing, or in any manner, any
    greater sum or value for the loan of money, or upon contract
    founded upon any sale or loan of real or personal property,
    than is in this chapter prescribed.” The Supreme Court of
    Iowa has identified “four essential elements” of usury: “(1) a
    loan or forbearance, either express or implied, of money or
    of something circulating as such; (2) an understanding be-
    tween the parties that the principal shall be repayable abso-
    lutely; (3) the exaction of a greater profit than is allowed by
    law; and (4) an intention to violate the law.” State ex rel.
    Turner v. Younker Bros. Inc., 
    210 N.W.2d 550
    , 555 (Iowa 1973).
    Moreover, as the Supreme Court of Iowa has observed,
    “[t]his statute does not differentiate between the seller of
    property and the lender of money … .” 
    Id. at 559
    . Thus, the
    section “expressly includes contracts founded upon any sale
    or loan of real or personal property.” 
    Id.
     Here, all parties
    agree that the Purchase Agreement generally falls within the
    scope of the usury statute because it was “based on a con-
    tract founded upon the sale of personal property,” it in-
    volved a “forbearance,” and it contained an interest provi-
    sion that exceeded the presumptive rate of interest allowed
    66
    by Iowa law.
    ( … continued)
    Astrue, 
    494 F.3d 583
    , 586 (7th Cir. 2007). We therefore review this legal
    issue de novo.
    66 See Appellants’ Combined Reply and Resp. Br. 39–40.
    Nos. 20-1726 & 20-1727                                                  35
    The presumptive statutory ceiling for interest rates, how-
    ever, does not apply to all sales or loans of real or personal
    property. 
    Iowa Code § 535.2
    (2)(a) provides that certain “per-
    sons may agree in writing to pay any rate of interest.”
    Among those listed are “person[s] borrowing money or ob-
    taining credit for business or agricultural purposes,” com-
    monly known as the Business Credit Exception. Iowa Code
    67
    § 535.2(2)(a)(5). The district court determined, and the par-
    67 
    Iowa Code § 535.2
    (2)(a) provides:
    The following persons may agree in writing to pay any
    rate of interest, and a person so agreeing in writing shall
    not plead or interpose the claim or defense of usury in
    any action or proceeding, and the person agreeing to re-
    ceive the interest is not subject to any penalty or forfei-
    ture for agreeing to receive or for receiving the interest:
    (1) A person borrowing money for the purpose of ac-
    quiring real property or refinancing a contract for deed.
    (2) A person borrowing money or obtaining credit in an
    amount which exceeds the threshold amount as defined
    in section 537.1301, exclusive of interest, for the purpose
    of constructing improvements on real property, whether
    or not the real property is owned by the person.
    (3) A vendee under a contract for deed to real property.
    (4) A domestic or foreign corporation, and a real estate
    investment trust as defined in section 856 of the Internal
    Revenue Code, and a person purchasing securities as de-
    fined in chapter 502 on credit from a broker or dealer
    registered or licensed under chapter 502 or under the
    federal Securities Exchange Act of 1934, 15 U.S.C. § 78a
    et seq., as amended.
    (5) A person borrowing money or obtaining credit for
    business or agricultural purposes, or a person borrowing
    money or obtaining credit in an amount which exceeds
    (continued … )
    36                                            Nos. 20-1726 & 20-1727
    ties agree, that the Purchase Agreement is for a business
    purpose. The only question, therefore, is whether the con-
    tract involves “borrowing money or obtaining credit.” To
    answer this question, Rembrandt invites our attention to
    State ex rel. Turner v. Younker Brothers Inc., 
    210 N.W.2d at 550
    .
    In Turner, the Supreme Court of Iowa considered wheth-
    er a retail installment contract exacted interest in excess of
    that allowed by 
    Iowa Code § 535.2
    . The first step in the
    court’s analysis was to determine whether the installment
    contract was subject to the usury statute. As the court ex-
    plained, “the first enumerated essential element” of the usu-
    ry statute is that there must be “[a] loan or forbearance.” 
    Id. at 561
    . In the case of the “revolving charge account” before
    it, “the purchaser agree[d] ‘to pay in full within 30 days after
    the billing date on my/our account for all purchases made
    during the preceding billing cycle without a finance charge.’
    The agreement then provide[d] for additional charges for
    payments made after 30 days.” 
    Id. at 562
    . The court then ex-
    plained how this arrangement fell within the Iowa usury
    statute:
    When time is given to pay the [cash price] and
    an amount is assumed to be paid which is
    greater than the cash price with legal interest,
    ( … continued)
    the threshold amount, as defined in section 537.1301, for
    personal, family, or household purposes. As used in this
    paragraph, “agricultural purpose” means as defined in
    section 535.13, and “business purpose” includes but is
    not limited to a commercial, service, or industrial enter-
    prise carried on for profit and an investment activity.
    Nos. 20-1726 & 20-1727                                     37
    the result is an agreement for forbearance from
    demanding payment of an existing debt.
    Forbearance does not necessarily require an
    actual loan of money. It generally signifies the
    giving of time for the payment of a debt. In any
    transaction in which there is a delay until final
    payment there is forbearance as that term is
    used in the requirement for a finding of usury.
    We conclude that forbearance as used in
    usury law is present in both credit plans of-
    fered by Younkers.
    
    Id.
     (citations omitted).
    In this case, Paragraph E of the Purchase Agreement al-
    lowed Rexing twenty-one days from the date of invoice to
    pay for eggs that had been shipped. After that time, Rexing
    would be charged interest at the rate of one percent per
    month. Because the Purchase Agreement provides for an
    additional charge of one percent in the event that Rembrandt
    endures a forbearance of payment after the expiration of the
    twenty-one-day payment period, this constitutes an exten-
    sion of credit for purposes of the usury statute.
    The district court concluded, however, that Paragraph E
    did not amount to a forbearance. According to the district
    court, the Purchase Agreement provided for delayed pay-
    ment “because the Agreement specifically required that the
    eggs be graded, and the price adjusted accordingly. The na-
    ture of the transactions required time between shipment and
    payment so that the appropriate price could be determined.
    38                                            Nos. 20-1726 & 20-1727
    This is fundamentally different from purchasing goods on
    68
    credit … .”
    Even accepting the district court’s characterization of the
    69
    first twenty-one days, the court’s reasoning does not ex-
    tend to Rexing’s agreement under Paragraph E to pay
    “[p]ast due invoices” at “an interest charge of one percent
    70
    (1%) per month.” With respect to this term, Rembrandt is
    forbearing payment in full in exchange for the payment of
    interest.
    B.
    Nevertheless, Rexing maintains that the district court’s
    conclusion that the Purchase Agreement does not fall within
    the Business Credit Exception should be affirmed for two
    primary reasons. First, it contends that “Rembrandt’s judg-
    ment does not arise from a loan or credit provided to [Rex-
    ing] but from a failure to purchase contracted-for goods un-
    71
    der Art. 2 of the U.C.C.” Second, it maintains that the Pur-
    chase Agreement itself did not involve the extension of cred-
    68 R.251 at 13.
    69 Because we conclude that the remainder of Paragraph E involves an
    extension of credit that places the Purchase Agreement within the Busi-
    ness Credit Exception, we need not, and do not, consider whether this
    initial twenty-one days constitutes a forbearance of payment such that
    this provision, standing alone, would constitute an extension of credit for
    purposes of the Business Credit Exception.
    70 Purchase Agmt. at 2.
    71 Appellants’ Combined Reply and Resp. Br. 29 (emphasis added).
    Nos. 20-1726 & 20-1727                                        39
    it necessary for application of the Business Credit Exception.
    We address each of these in turn.
    1.
    Rexing’s first contention—that Rembrandt’s judgment
    does not arise from a loan or credit—is foreclosed by the Su-
    preme Court of Iowa’s decision in Kaiser Agricultural Chemi-
    cals, Inc. v. Peters, 
    417 N.W.2d 437
    , 441 (Iowa 1987). In Kaiser,
    Peters bought several items from Kaiser, and, according to
    the terms of sale, finance charges were to be “assessed at
    18% per year and compounded monthly.” 
    Id. at 438
    . Kaiser
    eventually brought suit seeking the account balance of
    $27,307.87, which “included $3,569.28 in finance charges.” 
    Id.
    After trial, judgment was entered on the principal amount,
    with the court awarding statutory, not contractual, interest.
    On appeal, Peters argued that the agreed-to rate of interest
    was usurious and, therefore, the penalty provision set forth
    72
    in 
    Iowa Code § 535.5
     precluded any recovery of interest.
    Kaiser, however, maintained that it had not violated the
    usury statute because Peters “ha[d] not paid any interest.”
    
    Id. at 441
    . The Supreme Court of Iowa explained that the el-
    ements of usury
    must exist at the inception of the contract, since
    a contract which in its inception is unaffected
    by usury cannot be invalidated by a subse-
    quent usurious transaction, nor, as a general
    rule, may a transaction that is usurious in its
    inception be subsequently cured. It is the
    72 See supra text accompanying note 47.
    40                                           Nos. 20-1726 & 20-1727
    agreement to exact and pay usurious interest,
    and not the performance of the agreement,
    which renders it usurious. The test to be ap-
    plied in any given case is whether the contract,
    if performed according to its terms, will result
    in producing to the lender a rate of interest
    greater than is allowed by law, and whether
    such result is intended.
    Id. (quoting 45 Am. Jur. 2d Interest and Usury § 111 (1969)).
    Thus, whether Peters had paid, and Kaiser had received, in-
    terest at the usurious rate was irrelevant because whether an
    agreement is usurious is based solely on the terms of the
    parties’ agreement.
    Whether the interest term in the Purchase Agreement is
    usurious, therefore, rises and falls on the language of the
    Purchase Agreement. If the Purchase Agreement is usurious,
    Rembrandt’s later judgment for breach of the agreement
    cannot render it nonusurious. Similarly, if the Purchase
    Agreement itself is nonusurious, Rembrandt’s later judg-
    ment for breach on the agreement cannot render it usuri-
    73
    ous. Rexing’s argument, therefore, that the nature of its
    judgment takes it outside of the Business Credit Exception
    cannot be reconciled with the Supreme Court of Iowa’s in-
    terpretation of the usury statute in Kaiser.
    73 In its Combined Reply and Response Brief, Rexing does not address
    the Supreme Court of Iowa’s holding in Kaiser Agricultural Chemicals, Inc.
    v. Peters, 
    417 N.W.2d 437
    , 441 (Iowa 1987), that post-contractual actions
    cannot be used to determine if an agreement is usurious. It similarly was
    silent on this point at oral argument.
    Nos. 20-1726 & 20-1727                                     41
    2.
    Rexing also argues that the Purchase Agreement did not
    involve an extension of credit necessary to come within the
    Business Credit Exception. Rexing maintains that, under the
    Supreme Court of Iowa’s decision in Turner, it is possible to
    have an agreement that is a forbearance—and therefore is
    subject to the state’s usury law—but does not constitute
    “borrowing money or obtaining credit” for purposes of the
    Business Credit Exception. Turner, however, does not sup-
    port this proposition. As we already have explained, Turner
    involved consumer credit sales, and it was in this context
    that the Supreme Court of Iowa equated a forbearance of
    payment with an extension of credit.
    Moreover, more recently, the Supreme Court of Iowa has
    held that a sales agreement with a provision very similar to
    that contained in Paragraph E of the Purchase Agreement
    could fall within the Business Credit Exception. Power Equip.,
    Inc. v. Tschiggfrie, 
    460 N.W.2d 861
     (Iowa 1990). According to
    the arrangement in Tschiggfrie,
    [i]tems purchased and equipment which had
    been serviced were picked up at plaintiff’s
    place of business by defendant’s employees. In
    so doing, these employees ordinarily, but not
    always, signed plaintiff’s copy of an invoice
    form. On this form, it was stated that, in con-
    sideration for the granting of credit, defendant
    agreed to pay a specified finance charge in the
    event the prices stated in the invoice were not
    paid within thirty days.
    42                                      Nos. 20-1726 & 20-1727
    
    Id. at 862
    . The Supreme Court of Iowa “agree[d] with plain-
    tiff’s contention that the law permits a section 535.2(2)(a)(5)
    agreement with respect to the type of transactions involved
    in the present dispute.” 
    Id. at 863
    . The court therefore re-
    manded for a determination whether the employees’ signa-
    tures on the invoices constituted a written agreement for
    purposes of the Business Credit Exception. See 
    id.
    Here, as noted, Paragraph E of the Purchase Agreement
    is strikingly similar to the terms of the invoices in Tschiggfrie.
    Specifically, both the invoices in Tschiggfrie and Paragraph E
    provide for the payment of interest in the event that there is
    a forbearance of payment of the invoiced amount beyond a
    specified time.
    Because Paragraph E meets the requirements of the Busi-
    ness Credit Exception, we therefore reverse the district
    court’s judgment denying Rembrandt contractual interest on
    the verdict. The district court’s determination that the Pur-
    chase Agreement was usurious also formed the basis for its
    denial of attorneys’ fees and costs. We therefore remand the
    case to the district court for both the calculation of contrac-
    tual interest and further consideration of Rembrandt’s mo-
    tion for attorneys’ fees.
    Conclusion
    The district court employed the proper standard for re-
    sale damages under Iowa’s version of the UCC in ruling on
    pretrial motions and instructing the jury. Additionally, Rex-
    ing failed to preserve any challenges to the jury’s award of
    damages. We therefore affirm the district court’s entry of
    judgment on the jury’s award. However, because the Pur-
    chase Agreement fell within the Business Credit Exception to
    Nos. 20-1726 & 20-1727                                     43
    Iowa’s usury statute, the district court erred in denying
    Rembrandt contractual interest and failing to consider its re-
    quest for attorneys’ fees. We therefore reverse the judgment
    of the court on these issues and remand for further proceed-
    ings consistent with this opinion. Rembrandt may recover its
    costs in this court.
    AFFIRMED in part; REVERSED and REMANDED in part