I need help with letter C only. Give me your thoughts on it.

An investment banker is analyzing two companies that specialize in the production and sale of gourmet cappuccino and chai mixes. Roasted Beans Co. uses a labor-intensive approach and Monat Industries uses a mechanized system. Variable costing income statements for the two companies are shown below: Roasted Beans Monat Industries Sales $1,000,000 $1,000,000 Variable costs 650,000 300,000 Contribution margin 350,000 700,000 Fixed costs 175,000 525,000 Net Income $ 175,000 $ 175,000 The investment banker is interested in acquiring one of these companies. However, she is concerned about the impact that each company's cost structure might have on its profitability. Instructions (a) Calculate each company's degree of operating leverage. (6 pts) (b) Determine the effect on each company's net income if sales decrease by 10% and if sales increase by 15%. Do not prepare income statements. (10 pts) (c) Why is it important for management to have a clear understanding of the organization's cost structure? (4 pts)