The investment center is currently generating an ROI of 23% based on $1,215,000 in operating assets and a controllable margin of $293,000 If the manager can select only one project, determine which is the best choice to increase the investment center's ROI by computing the investment center's ROI for each of the investment alternatives, (Round answer to 1 decimol place, e.g. 52.5.) is the best choice and ROI will be