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 companys 2020 annual report: net sales $40,930, net income $449, beginning common stockholders equity $2,629, and ending common stockholders equity $2,884.

Compute the return on common stockholders equity. (Round answer to 1 decimal place, e.g. 10.5%.) Return on common stockholders equity _______ %