The following selected information is for Marx Corporation: Total assets Total shareholders' equity Sales Cost of goods sold Net income 2021 $349.000 128.500 490.000 2020 $279.000 98.000 409.000 283.846 31.084 2019 $280.000 48.500 304,000 173.000 18.900 1967010 31820 Marx had no preferred shares. (a) Calculate the gross profit margin, profit margin, asset turnover return on assets, and return on common shareholders' equity ratios for 2021 and 2020. (Round gross profit margin, profit margin, return on assets and return on equity to 1 decimal place eg. 26. Round asset tumover to 2 decimal places eg. 6.21) 2021 2020 Gross profit margin % % Profit margin %6 %6 Asset turnover times times Return on assets 96 Return on common shareholders equity %