EM Sales had $2,100,000 in sales last month. The contribution margin ratio was 50% and operating profits were $170,000. What is EM's margin of safety is sales dollars?

Street Company's fixed costs total $250,000, its variable cost ratio is 20% and its variable costs are $5.50 per unit. Based on this information, the break-even point in units is:

The Blue Company is currently selling its single product for $21. Variable costs are estimated to remain at 50% of the current selling price and fixed costs are estimated to be $5,400 per month. If Blue increases its selling price by 30%, its variable cost ratio will: