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 $1,700 550 2,700 270 850 West $6,400 810 3,700 270 750 R&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.) ROI Divisions East West % % a-2. Which division had the better performance? O East o West