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Profitability Ratios The following selected data were taken from the financial statements of Vidahill Inc. for December 31, 20Y7, 20Y6, and 2015: December 31 20Y7 20Y6 2045 Total assets $231,000 $208,000 $185,000 Notes payable (8% interest) 80,000 80,000 80,000 Common stock 32,000 32,000 32,000 Preferred 4% stock, $100 par 16,000 16,000 16,000 (no change during year) Retained earnings 89,880 59,010 48,000 The 2017 net income was $31,510, and the 2016 net income was $11,650. No dividends on common stock were declared between 2015 and 2047. Preferred dividends were declared and paid in full in 2046 and 2017. a. Determine the return on total assets, the return on stockholders' equity, and the return on common stockholders' equity for the years 2016 and 2007. When required, round to one decimal place. 20Y7 20Y6 Return on total assets % % Return on stockholders' equity % % Return on common stockholders' equity % %