Results from Optimum Corporation's most recent year of operations are presented in the following table. (Click the icon to view the information.) Requirements 1. Calculate the sales margin, capital turnover, and return on investment (ROI). 2. Calculate the residual income (RI). Requirement 1. Calculate the sales margin, capital turnover, and return on investment (ROI). i Data Table First enter the formula, then calculate the sales margin. = Sales margin Operating income $ 8,800 Total assets $ 16,000 Current liabilities. $ 4,500 Sales.... $ 35,200 Target rate of return 15 % Print Done