Wheat Inc. has an exclusive contract with an exporter. Two brands of wheat are imported,

Wheat Inc. has an exclusive contract with an exporter. Two brands of wheat are imported, labeled AB and CD. The following data are provided for the current fiscal year: Budgeted Actual Results AB CD AB CD Price per bushel $ 20 $ 10 $ 25 $ 12 Variable cost per bushel $ 15 $ 5 $ 15 $ 8 Sales (in bushels) 1,500 2,500 1,200 3,600 The total market was estimated to 40,000 bushels at the time of budget. The actual total market for the year is 32,000 bushels. What is AB's contribution margin sales volume variance?