SUPERVALU, one of the largest grocery retailers in the United States, is headquartered in Minneapolis. Suppose the following financial information (in millions) was taken from the company's 2025 annual report: net sales $45,000, net income $385, beginning stockholders' equity $2,600, and ending stockholders' equity $2,900. There were no dividends paid on preferred stock Compute the return on common stockholders' equity. (Round answer to 2 decimal places, e.g. 12.56\%) Return on common stockholders' equity ratio \%