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. Sales revenue Cost of goods sold Operating expenses 6,400,000 2,100,000 3,660,000 Average invested capita 1000 E denotes the British pound sterling, the national monetary unit of Great Britain. Required Compute the company's sales margin, capital turnover, and ROl Sales margin Capital turnover ROI