Back Mountain Industries (BMI) has two divisions: East and West. BMI has a cost of capital of 10 percent. Selected financial information (in thousands of dollars) for the first year of business follows: Sales revenue Income Investment (beginning of year) Current liabilities (beginning of year) R&D expendituresa East $1,300 350 2,300 230 650 West $5,600 570 3,300 230 550 aR&D is assumed to benefit two periods. All R&D is spent at the beginning of the year. Required: a-1. Evaluate the performance of the two divisions assuming BMI uses return on investment (ROI). (Round your final answers to nearest whole percentage value.) Divisions ROI % East West % a-2. Which division had the better performance? East West