Preston Ceramics, a division of Kerwin Corporation, has an operating income of $54,000 and total assets of $432,000. The required rate of return for the company is 9%. The company is evaluating whether it should use return on investment (ROI) or residual income (RI) as a measurement of performance for its division managers. The manager of Preston Ceramics has the opportunity to undertake a new project that will require an investment of $108,000. This investment would ear $10,800 for the company. Read the requirements. Requirement 1. What is the original return on investment (ROI) for Preston Ceramics (before making any additional investment)? First determine the formula to calculate the ROI. = ROI Requirements 1. What is the original return on investment (ROI) for Preston Ceramics (before making any additional investment)? 2. What would the ROI be for Preston Ceramics if this investment opportunity were undertaken? Would the manager of the Preston Ceramics division want to make this investment if she were evaluated based on ROI? Why or why not? 3. What is the ROI of the investment opportunity? Would the investment be desirable from the standpoint of Kerwin Corporation? Why or why not? 4. What would the residual income (RI) be for Preston Ceramics if this investment opportunity were to be undertaken? Would the manager of the Preston Ceramics division want to make this Investment if she were evaluated based on RI? Why or why not? 5. What is the RI of the investment opportunity? Would the investment be desirable from the standpoint of Kerwin Corporation? Why or why not? 6. Which performance measurement method, ROI or RI, promotes goal congruence? Why?