did part A but need help with part b/c if possible! thanks

Arnold Vimka is a venture capitalist facing two alternative investment opportunities. He intends to invest $1 million in a start-up firm. He is nervous, however , about future economic volatility. He asks you to analyze the following financial data for the past year's operations of the two firms he is considering and give him some business advice. Company Name Larson Benson $ 21.00 $ 10.50 $ 259,200 $ 259,200 170,100) (85,050) $ 89,100 $ 174,150 (24.500) (109,550 $ 64,600 $ 64,600 Variable cost per unit (a) Sales revenue (8,100 units $32.00) Variable cost (8,100 units X a) Contribution margin Yixed cost Not income SON ences Required a. Use the contribution margin approach to compute the operating leverage for each firm. b. If the economy expands in coming years, Larson and Benson will both enjoy a 10 percent per year increase in sales, assuming that the selling price remains unchanged. Compute the change in net income for each firm in dollar amount and in percentage (Note: Since the number of units increases, both revenue and variable cost will increase) c. If the economy contracts in coming years, Larson and Benson will both suffer a 10 percent decrease in sales volume, assuming that the selling price remains unchanged. Compute the change in net income for each firm in dollar amount and in percentage (Note: Since the number of units decreases, both total revenue and total variable cost will decrease) Required A Required B Required C If the economy expands in coming years, Larson and Benson will both enjoy a 10 percent per year increase in sales, assuming that the selling price remains unchanged. Compute the change in net income for each firm in dollar amount and in percentage. (Note: Since the number of units increases, both revenue and variable cost will increase.) (Round "Percentage" answer to 2 decimal place (l.e., 2345 should be entered as 23.45). Round final answers to nearest whole dollar) Show less Company Name Larson Benson 21.00 $ 10.50 $ Variable cost per unit Sales revenue Variable cost Contribution margin Fixed cost Net income Percentage change Required A Required B Required If the economy contracts in coming years, Larson and Benson will both suffer a 10 percent decrease in sales volume, assuming that the selling price remains unchanged. Compute the change in net income for each firm in dollar amount and in percentage. (Note: Since the number of units decreases, both total revenue and total variable cost will decrease.) (Round "Percentage" answer to 2 decimal place (.e., .2345 should be entered as 23.45). Round final answers to nearest whole dollar) Show less Company Name Larson Benson 21.00 $ 10.50 $ Variable cost per unit Sales revenue Variable cost Contribution margin Fixed cost Net Income Percentage change