Coolbrook Company has the following information available for the past year:

	River Division			Stream Division
Sales revenue	$	1,200,000		$	1,800,000
Cost of goods sold and operating expenses		900,000			1,300,000
Net operating income	$	300,000		$	500,000
Average invested assets	$	1,200,000		$	1,800,000

The companys hurdle rate is 6 percent. Required: 1. 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, (i.e., 0.1234 should be entered as 12.34%.)) 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. b. Operating income decreases by 10 percent. c. The company invests $250,000 in each division, an amount that generates $100,000 additional income per division. d. Coolbrook changes its hurdle rate to 10 percent.