Coolbrook Company has the following information available for the past year Stream River Division Division Sales revenue Cost of goods sold and operating expenses Net operating income Average invested assets $ 1,200,000 $ 1,800,000 1,300,000 $ 300,000 500,000 1,200,000 $ 1,800,000 900,000 The company's hurdle rate is 6 percent. Required 1. Calculate return on investment (ROI) and residual income for each division for last year. (Enter your ROIl answers as a percentage rounded to two decimal places, (i.e., 0.1234 should be entered as 12.34%.)) River Division Stream Divisionn ROI Residual Income (Loss) 2. Recalculate ROI and residual income for each division for each independent situation that followS: (Enter your ROI answers as a percentage rounded to two decimal places, (i.e., 0.1234 should be entered as 12.34%.)) a. Operating income increases by 10 percent. River Division Stream Division ROI Residual Income (Loss)