Q7 Mang Accounting (Please show all work)

7) The Engine Division of The Cleveland Automotive Corporation had sales of $7,200,000 and operating income of $864,000 last year. The total assets of the Engine Division were $3,200,000 while current liabilities were $800,000. The Cleveland Automotive Corporation's target rate of return is 13% while its weighted average cost of capital is 9%. The effective tax rate for the company is 45%.

Required:

a.   Calculate the sales margin.
b.   Calculate the capital turnover.
c.   Calculate the return on investment (ROI).
d   Calculate the residual income.