Question: 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 2017 annual report: net sales $44,597, net income $393, beginning stockholders' equity $2,581, and ending stockholders' equity $2,887. There were no dividends paid on preferred stock. Compute the return on common stockholders' equity. Provide a brief interpretation of your findings.