Need Assistance. thumbs Up will be left. thanks!

The company expects the following changes for investment centers I, II, and III in the next year investment center I to increase sales 15\%, investment center II to decrease controllable fixed costs $408,000, and investment center III to decrease average operating assets $472,000 Compute the expected return on irvestment (ROI) for each center. Assume investment center I has a contribution margin percentage of 73%. (Round ROI to 1 decimal ploce, es 1.5% )