Cost-Volume-Profit Relations: Missing Data Following are data from 4 separate companies. Supply the missing data in each independent case. Case 1 Case 2 Case 3 Case 4 Sales revenue $100,000 $70,000 $ $ Contribution margin $40,000 $ $30,000 $ Fixed Costs $28,000 $ $ $ Net income $8,000 $8,000 $ Variable cost ratio 0.50 0.20 Contribution margin ratio Break-even point (dollars) $ $30,000 Margin of safety (dollars) $ $20,000 $ 0.50 $ $ $