Cost-Volume-Profit Relations: Missing Data Following are data from 4 separate companies. Case A Case B Case CCase D 1,200 $20,000 $ 10 800 ? $80,000 Variable cost per unit . . . . . . . . . . . . . _ _ . . . . . . . . Contribution margin. $1 12 $800 $ 7,000 ? $82,000 $450 ? $15 4,000 300 2,000 1,000 Required Supply the missing data in each independent case