Cost-Volume-Profit Relations: Missing Data Following are data from 4 separate companies. Supply the missing data in each independent case. Please show how each section was calculated

	Case 1	Case 2	Case 3	Case 4
Sales revenue	$120,000	$100,000	$Answer	$Answer
Contribution margin	$60,000	$Answer	$20,000	$Answer
Fixed costs	$40,000	$Answer	$Answer	$Answer
Net income	$Answer	$5,000	$12,000	$Answer
Variable cost ratio	Answer	0.50	Answer	0.22
Contribution margin ratio	Answer	Answer	0.40	Answer
Break-even point (dollars)	$Answer	$Answer	$Answer	$25,000
Margin of safety (dollars)	$Answer	$Answer	$Answer	$20,000