Elsie's cake shop shows the following data for the last year: Sales $ Less: Variable costs $ Contribution margin $ Less: Fixed costs $ Operating income $ 3,640 1,120 2,520 1,350 1,170 The company sold 140 cakes during the year. Required: Using cost-volume-profit analysis, answer the following questions. What is the company's contribution margin ratio? A What is the company's breakeven point in cakes? A/ How many cakes would the company have to sell to attain a target operating income of $576? A What is the company's margin of safety in units for cakes? A What is the company's degree of operating leverage? Round to 2 decimal places. A Use the rounded answer you just entered to calculate the answer to this question. If sales increase by 32%, operating income would increase by $ A