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) 2016 2017 Net sales $4,900 $4,950 Cost of goods sold 3,300 3,701 Net income 65 181 Accounts receivable 65 109 Inventory 1,350 1,250 3,250 Total assets 2,850 Total common stockholders' equity 920 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