20) The net income of a company for the year was $570,000. The company has no preferred stock. Common stockholders' equity was $1,800,000 at the beginning of the year and $2,300,000 at the end of the ear. Calculate the rate of return on common stockholders' equity. (Round your answer to two decimal laces.) ) 24.78% ) 19.86% ) 31.67% ) 27.80%