Using the income statement for Times Mirror and Glass Co., compute the following ratios: TIMES MIRROR AND GLASS COMPANY Sales $ 270,000 Cost of goods sold 130,000 Gross profit $ 140,000 Selling and administrative expense 43,200 Lease expense 11,700 Operating profit* $ 85,100 Interest expense 9,300 Earnings before taxes $ 75,800 Taxes (30%) 30,320 Earnings after taxes $ 45,480 *Equals income before interest and taxes. . Compute the return on assets (investment). (Do not round intermediate calculations. Input your answer as a percent rounded to 2 decimal places.)