Shown are selected data from a recent annual report of CVS Health, a large drugstore chain. (Dollar amounts are in millions.) Beginning of End of the Total assets Total stockholders' equity Operating income Net income Required: the Year Year $ 94,462 36,834 $ 95,131 37,695 9,517 6.623 a. Compute for the year CVS Health's return on average total assets. b. Compute for the year CVS Health's return on average total stockholders' equity. Note: For all requirements, round percentage computations to two decimal places. a. Return assets % b. Return on equity %