I have been working on this for almost an hour now and dont know how to do it, if you could explain your answer that would be a huge help. Problem 4-15

Bonita, Inc., and Windsor, Inc., are two companies in the pharmaceutical industry. Bonita has relatively high fixed costs related to research and development. Windsor, however, does little research and development. Instead, the company pays for the right to produce and market drugs that have been developed by other companies. The amount paid is a percent of sales. Thus, Windsor has relatively high variable costs and relatively low fixed costs:

Bonita Inc.

Sales: 140,488,000

Less Variable Costs: 35,122,000

Less Fixed Costs: 89,735,000

Profit: 15,631,000

Windsor Inc.

Sales: 162,876,000

Less Variable Costs: 97,725,600

Less Fixed Costs: 27,131,400

Profit: 38,019,000

Calculate the expected percentage change in profit for a 10 percent increase (or for a 10 percent decrease) in sales for each company.(Round answers to 2 decimal places, e.g. 15.25%.)