3 Data 4. Sales $ 32,000,000 $ 2.880.000 5 6 Net operating income Average operating assets Minumum required rate of return $ 16,000,000 7 30% If your formulas are correct, you should get the correct answers to the following questions. a. What is the ROI? ROL b. What is the residual income? (Negative amount should be indicated by a minus sign.) Residual income c. Why is the residual income negative