The jury fixed the per pound market prices for polystyrene under each of the four orders at three different times: when Helm learned of the cancellation, at a commercially reasonable time thereafter, and at the time for delivery.
The district court, viewing the four orders as representing one agreement, determined that Helm was entitled to recover $628,676 in damages representing the difference between the contract price and the market price at a commercially reasonable time after Cosden repudiated its polystyrene delivery obligations and that Cosden was entitled to an offset of $355,950 against those damages for polystyrene delivered, but not paid for, under order 04.