Selected account information (in $ millions) from Target Corporation's 2018 annual report follows. While the company has authorized the issuance of 5 million shares of preferred stock, none have been issued. 2018 2017 $2,930 $2,908 Income from continuing operations Total assets Total common shareholders' equity $41,290 $40,303 $11,297 $11,651 (a) Calculate Target Corporation's return on assets for 2018. (Round answers to 1 decimal place, e.g. 50.1%.) Return on assets %