I am unsure of the steps I need to take to solve this, can anyone help?

Rooney Company is considering the addition of a new product to its cosmetics line. The company has three distinctly different options: a skin cream, a bath oil, or a hair coloring gel. Relevant information and budgeted annual income statements for each of the products follow. Required: 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. c. For each product, determine the percentage change in net income that results from the 20 percent increase in sales. 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