The Sterling Tire Company's income statement for 20XX is as follows: STERLING TIRE COMPANY Income Statement Year ended December 31, 20XX Sales (30,000 tires at $45 each) Less: Variable costs (30,000 tires at $20) $ 1,350,000 600,000 Contribution margin Less: Fixed costs 750,000 600,000 Earnings before interest and taxes (EBIT) Interest expense 150,000 75,000 Earnings before taxes (EBT) Income tax expense (30%) 75,000 22,500 Earnings after taxes (EAT) $ 52,500 Given this income statement, compute the following: a. Degree of operating leverage. (Round the final answer to 2 decimal places.) DOL Given this income statement, compute the following: a. Degree of operating leverage (Round the final answer to 2 decimal places.) DOL b. Degree of financial leverage. (Round the final answer to 2 decimal places.) DFL C-1. Degree of combined leverage. (Do not round the intermediate calculations. Round the final answer to 2 decimal places.) DCL X c-2. Using your answers to a. and b. calculate the percentage increase in EBIT and EBT from a 20 percent increase in sales volume. (Do not round the intermediate calculations. Round the final answers to 2 decimal places.) ERIT EBT $ c-3. Does financial or operating leverage have the greater impact? c-2. Using your answers to a. and b. calculate the percentage increase in EBIT and EBT from a 20 percent inc (Do not round the intermediate calculations. Round the final answers to 2 decimal places.) EBIT EBT c-3. Does financial or operating leverage have the greater impact? DOL O DFL d. Break-even point in units. (Round the final answer to the nearest whole number.) Break-even point tires e. Break-even point considering the interest expense as a fixed cost. Break-even point tires