Selected comparative statement data for Pronghorn Products Company are presented below. All balance sheet data are as of December 31. Net sales Cost of goods sold Interest expense Net income Accounts receivable Inventory Total assets Total common stockholders' equity 2020 $794,500 486.000 7,200 63,560 128,000 93,000 635,000 470,000 2019 $728,000 439,000 5,500 42,500 108,000 74,000 500,000 350,000 Compute the following ratios for 2020: (Round answers to 1 decimal place, e.g. 52.7.) 1. Profit Margin 2. Asset turnover 3. Return on Assets 4. Return on common stockholders' equity