Common Stockhol ders' Profitability Analysis A company reports the following: Net income $270,000 Preferred dividends 10,800 Average stockhol ders' equity 2,410,714 Average common stockholders' equity 1,378,723 Determine (a) the the return on stockholders' equity and (b) the return on common stockholders' equity. If required, round your percenta ges to one decimal place. a. The rate earned on stockholders' equity b. The rate earned on common stockholders' equity %