Nakamura Company provided the following income statement for the last year: Sales Less: Variable expenses Contribution margin Less: Fixed expenses Operating income $848,770,000 553,522,000 $295,248,000 192,378,000 $102,870,000 At the beginning of last year, the company had $38,627,000 in operating assets. At the end of the year, the company had $41,310,000 in operating assets. Required: 1. Compute average operating assets. $ 2. Compute the margin (as a percent) and turnover ratios for last year. If required, round your answers to two decimal places. Margin Turnover % 3. Compute ROI as a percent. Use the part 2 final answers in these calculations and round the final answer to two decimal places. %