4. (4 pts.) Eban Wares is a division of a major corporation. The following data are for the latest year of operations: Sales Net operating income Average operating assets The company's minimum required rate of return $10,000,000 $950,000 $4,000,000 14% a. Required: What is the division's margin? b. What is the division's turnover? What is the division's return on investment (ROI)? d. What is the division's residual income? c