round the values to the nearest penny

Sophie Inc. is showing the following expected results for the sale of her dance book: Expected Sales Units Sales Total variable costs Contribution margin Total fixed costs Operating income 3,000 $120,000 $72,000 $48,000 $9,000 $39,000 What is the contribution margin ratio? HINT: remember the entry rules for percentages. A/ What is the break-even in sales dollars? A/ What is the margin of safety in sales dollars? A/ What is the degree of operating leverage? Entry rules: enter your answer rounded to 2 decimal places. A/ If sales increase by 15%, by what percentage will the operating income increase? HINT: remember the entry rules for percentages AND remember to use your rounded answer for the degree of operating leverage that you just entered