Please answer letter E or part E as soon as possible!

Question 3 Ebrahim Wares is a division of a major corporation. The following data are for the latest year of operations Sales 514,720,000 Net operating income $1,000,960 Average operating assets $4,000,000 The company's minimum required rate of return 14 Required: a. What is the division's margin? (1/2 mark) b. What is the division's turnover2 (1/2 mark) c. What is the division's return on investment (ROI? (1/2 mark) d. What is the division's residual income? (1 mark) e. Which of the two measures in cand d above is a better measure of performance and why? (1.5 mark)