For its three investment centers, Bonita Company accumulates the following data:

		I		II		III
Sales		$2,100,000		$4,008,000		$3,911,000
Controllable margin		1,470,000		2,004,000		3,519,900
Average operating assets		5,021,000		7,914,000		12,150,000

The centers expect the following changes in the next year: (I) increase sales 12%; (II) decrease costs $448,000; (III) decrease average operating assets $542,000. Compute the expected return on investment (ROI) for each center. Assume center I has a controllable margin percentage of 70%. (Round ROI to 1 decimal place, e.g. 1.5%.)