Coolbrook Company has the following information available for the past year: Sales revenue Cost of goods sold and operating expenses Net operating income Average invested assets River Division $ 1,219,000 889,000 $ 330,000 $ 1,090,000 Stream Division $ 1,809,000 1,286,000 $ 523,000 $ 1,520,000 The company's hurdle rate is 6.51 percent. Required: 1. Calculate return on investment (ROI) and residual income for each division for last year. 2. Recalculate ROI and residual income for the division for each independent situation that follows: a. Operating income increases by 9 percent. b. Operating income decreases by 12 percent. c. The company invests $246,000 in each division, an amount that generates $110,000 additional income per division. d. Coolbrook changes its hurdle rate to 4.51 percent. a. Calculate return on investment (ROI) and residual income for each division for last year. (Enter your ROI answers as a percentage rounded to two decimal places, (1.e., 0.1234 should be entered as 12.34%.)) River Division Stream Division % ROI Residual Income (Loss) b. Recalculate ROI and residual income for each division for the independent situation that follows: Operating Income Increases by 9 percent. (Enter your ROI answers as a percentage rounded to two decimal places, (i.e., 0.1234 should be entered as 12.34%.). Loss amounts should be indicated with a minus sign.) River Division Stream Division % ROI Residual Income (Loss) Recalculate ROI and residual income for each division for the independent situation that follows: Operating income decreases by 12 percent. (Enter your ROI answers as a percentage rounded to two decimal places, (i.e., 0.1234 should be entered as 12.34%.). Loss amounts should be indicated with a minus sign.) River Division % Stream Division % ROI Residual Income (Loss)