ROI and Residual Income:Basic Computations Watkins Associated Industries is a highly diversified company with three divisions: Trucking, Seafood, and Construction. Assume that the company uses return on investment and residual income as two of the evaluation tools for division managers. The company has a minimum desired rate of return on investment of 10 percent with a 30 percent tax rate. Selected operating data for three divisions of the company follow. (a) Compute the return on investment for each division. (Round answers to three decimal places.) Trucking ROI = Seafood ROI = Construction ROI= (b) Compute the residual income for each division