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 1,000 800 Answer 0 Answer 0 Sales revenue $20,000 $Answer 0 $Answer 0 $60,000 Variable cost per unit $10 $2 $10 $Answer 0 Contribution margin $Answer 0 $800 $Answer 0 $Answer 0 Fixed Costs $8,100 $Answer 0 $60,000 $Answer 0 Net income $Answer 0 $600 $Answer 0 $Answer 0 Unit contribution margin $Answer 0 $Answer 0 $Answer 0 $13 Break-even point (units) Answer 0 Answer 0 4,000 2,000 Margin of safety (units) Answer 0 Answer 0 100 1,000