Abigayle's swim club shows the following information for the year: Sales $ Less: Variable costs $ Contribution margin $ Less: Fixed costs $ Operating income $ 1,750 700 1,050 1,008 42 The club had 250 students during the year. Required: Using cost-volume-profit analysis, answer the following questions. What is the club's contribution margin ratio? A/ What is the club's breakeven sales in students? How many students would the club have to sign up to attain a target operating income of $168? What is the club's margin of safety in students? A What is the club's degree of operating leverage? Round your answer to 2 decimal places. A Use the rounded answer you just entered to calculate the answer to this question. If sales increase by 10%, operating income would increase by $_ A/