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

		I		II		III
Sales		$2,087,300		$3,994,100		$4,051,700
Controllable margin		800,819		1,961,921		3,852,244
Average operating assets		4,913,000		7,943,000		12,076,000

Compute the return on investment (ROI) for each center. (Round ROI to 1 decimal place, e.g. 1.5%.)

I II III

The return on investment