Sales price per unit Variable cost per unit Fixed costs per year 45 27 259,000 a. Compute the contribution margin ratio and the dollar sales volume required to break even. b. Assuming that the company sells 20,000 units during the current year, compute the margin of safety (in dollars). Answer is complete but not entirely correct. Contribution margin ratio a. 40 % Break even sales dollars $ 645,000 b. Margin of safety (in dollars) $ 172,500 lo at yet Lenar