Raven Inc. sells a single product for $45. Variable costs include $27.65 for each unit plus a $7 selling expense per unit. Fixed costs are $210,910 per month. a. What is the contribution margin percentage? Contribution Margin 23 % b. What is the break-even sales revenue? Break-Even Sales Revenue c. What sales revenue is needed to achieve a $242,650 per month profit? Total Sales Revenue Needed $ 2,911,800