Suppose selected comparative statement data for the giant bookseller Barnes & Noble are presented here. All balance sheet data are as of the end of the fiscal year (in millions). 2017 2016 Net sales $5,251 $5,401 Cost of goods sold Net income Accounts receivable 3,400 75 75 1,250 2,850 3,300 110 103 1,250 3,250 Inventory Total assets Total common stockholders' equity 910 1,060 Compute the following ratios for 2017. (Round asset turnover to 2 decimal places, e.g 1.83 and all other answers to 1 decimal place, e.g. 1.8 or 2.5%) (a) Profit margin (b) Asset turnover times (c) Return on assets (d) Return on common stockholders' equity (e) Gross profit rate