For its three investment centers, Gerrard Company accumulates the following data: I II III Sales $2,010,000 $3,936,000 $4,039,000 Controllable margin 936,510 2,004,500 4,830,000 Average operating assets 4,929,000 8,018,000 12,075,000 The centers expect the following changes in the next year: (I) increase sales 14%; (II) decrease controllable fixed costs $373,000; (III) decrease average operating assets $452,000. Compute the expected return on investment (ROI) for each center. Assume center I has a contribution margin percentage of 74%. (Round ROI to 1 decimal place, e.g. 1.5.) I II III The expected return on investment % % %