On January 1, 2017. Concord Corporation purchased 5,500 shares of treasury stock Other information regarding Concord Corporation is provided as follows. Net income Dividends on preferred stock Dividends on common stock Weighted average number of common shares outstanding Common stockholders' equity beginning of year Common stockholders' equity end of year 2017 $90,000 $31.900 $25,500 45.000 $630,000 $864,000 2016 $80,000 $31.900 $21.550 50.000 $420,000 $570,000 (a) Compute return on common stockholders' equity for each year. (Round answers to 1 decimal place, es 15.2) 2016 2017 3 Return on common stockholders' equity Attempts: 0 of 10 used