a. Determine the margin of safety as a percentage for each product. b. Prepare revised income statements for each product, assuming a 20 percent increase in the budgeted sales volume. c1. For each product, determine the percentage change in net income that results from the 20 percent increase in sales. c2. Which product has the highest operating leverage? d. Assuming that management is pessimistic and risk averse, which product should the company add to its cosmetics line? e. Assuming that management is optimistic and risk aggressive, which product should the company add to its cosmetics line