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). 2020 $4,750 3.000 55 Net sales Cost of goods sold Net income Accounts receivable Inventory Total assets Total common stockholders' equity 2019 $4.900 3.100 100 100 1.250 3,150 1,050 65 1,150 2,850 880 Compute the following ratios for 2020. (Round asset turnover to 2 decimal places, eg 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 %