Cost-Volume-Profit Relations: Missing Data Following are data from 4 separate companies. Supply the missing data in each independent case. Case A Case B Case C Case D Unit Sales 1,000 Sales revenue $20,000 $60000 Variable cost per unit $10 $1 $12 $ Contribution margin $800 $ Fixed Costs $7,000 $ $80,000 800 A A A Net income $ $500 $ A $15 Unit contribution margin $ Break-even point (units) Margin of safety (units) 4,000 2,000 1,000 300