Required information [The following information applies to the questions displayed below.] The following data pertain to British Isles Aggregates Company, a producer of sand, gravel, and cement, for the year just ended. denotes the British pound sterling, the national monetary unit of Great Britain. Required: Compute the company's sales margin, capital turnover, and ROI. 2. If the sales and average invested capital remain the same during the next year, to what level would total expenses have to be reduced in order to improve the firm's ROI to 15 percent? 3-a. Assuming that the expenses and cost of goods sold are reduced in order to improve the firm's ROI to 15 percent, compute the firm's new sales margin. 3-b. Show how the new sales margin and the old capital turnover together result in a new ROI of 15 percent. Complete this question by entering your answers in the tabs below. Assuming that the expenses and cost of goods sold are reduced in order to improve the firm's ROI to 15 percent, compute the firm's new sales margin. (Round your answer to 1 decimal place. (i.e., .123 should be entered as 12.3).) 3-a. Assuming that the expenses and cost of goods sold are reduced in order to improve the firm's ROI to 15 percent, compute the firm's new sales margin. 3-b. Show how the new sales margin and the old capital turnover together result in a new ROI of 15 percent. Complete this question by entering your answers in the tabs below. Show how the new sales margin and the old capital turnover together result in a new ROI of 15 percent. (Round your "Percentage" answer to 1 decimal place. (i.e., .123 should be entered as 12.3).)