Crane Medical manufactures hospital beds and other institutional furniture. The company's comparative balance sheet and income statement for 2019 and 2020 follow. Crane Medical Comparative Balance Sheet As of December 31 2020 2019 Assets Current assets Cash $366,000 $417,400 Accounts receivable, net 1,080,000 776,450 Inventory 736,000 681,100 Other current assets 381,350 247,050 Total current assets 2,563,350 2,122,000 Property, plant, & equipment, net 8,666,440 8,440,015 Total assets $11,229,790 $10,562,015 Liabilities and Stockholders' Equity Current liabilities $3,169,000 $2,846,000 Long-term debt 3,702,600 3,892,700 Total liabilities 6,871,600 6,738,700 Preferred stock, $5 par value 59,000 59,000 Common stock, $0.25 par value 104,600 103,800 Retained earnings 4,194,590 3,660,515 Total stockholders' equity 4,358,190 3,823,315 Total liabilities and stockholders' equity $11,229,790 $10,562,015Crane Medical Comparative Income Statement and Statement of Retained Earnings For the Yea r 2020 2019 Sales revenue lall onaccou nt} \"0.171250 $9.613.950 Cost of goods sold 5.612450 5.298550 Gross prot 4.564300 4.315200 Operating expenses 2.840200 2.634100 Net operatingincorne 1324.600 1.681.100 Intert expense 300.350 308.650 Net income before tam 1.424250 1.372450 Income taxes [3096} 427.275 411.?35 Net income 5996.9?5 5960.? 15 Dividends paid Preferred dividends 29.450 29.450 Common dividends 433.450 4 13100 Total dividends paid 462.900 442.550 Net income retained 534.0?5 5 18.165 Retained earnings. beginni ng of year 3.660515 3.142350 Retained earnings. end of year $419415 90 $3.660.515 Calculate the following protability ratios for 2020.1'Round answers to 1 decimal piece, es. 50.1%.} a. Gross margin percentage 44.3 96 9.1. 96 In. Return on assets c. Return on common stockholders' equity.r 22.3 %