The Marine Division of Pacific Corp. has average invested assets of $100,000,000. Sales revenue of $50,260,000 results in an operating income of $9,973,000. The hurdle rate is 8%. a. Calculate the return on investment. (Round your answer to 2 decimal places.) b. Calculate the profit margin. (Round your answer to 2 decimal places.) c. Calculate the investment turnover. (Round your answer to 4 decimal places.) d. Calculate the residual income.