Harper's, a home-improvement store chain, reported these summarized figures: (Click the icon to view the income statement.) (Click the icon to viaw the balance sheets.) Read the reguirements. a. Calculate the gross profit percentage for 2020 . First idontify the formula, then calculate the gross profit percentage. (Round your answer to one decimal place) b. Calculate the operating income percentage for 2020 . First identify the formula, then caiculate the operating income percentage. (Round your answer to one decimal place.) c. Calculate the rate of return on net sales for 2020 . Firstidentify the formula, then calculate the rate of roturn on net sales. (Round your answer to cone decimal place.) d. Calculate the rate of return on total assets for 2020 . Identify the formula, then calculate the rate of retum on total assets. (Round your answer to one decimal place.) e. Calculate the rate of retum on common stockholdors' oquity for 2020. Identify the formila, then calculate the rato of return on common stockholders' equity. (Round your answar fo one decimal place. If an item has a zero balance, enter a \\( \\$ 0 \\) in the input box.) Hanpers, a home-improvement store chain, roported these summarized figures: Read the reguiremones Balance sheets Income statement b. \\( \\mathrm{Ca} \\) Finst if c. cat First if d. Cad Ident/ 14 \\( 1 . \\mathrm{ca} \\) Idenst nput Those rates of ruturn appear to be