Exercise 9-11 (Algo) Calculate gross profit ratio and cost of goods sold LO 9-2, 9-3 Refer to the following mentioned data. (In millions) 2019 2018 $ 26,325 13,539 Net sales Cost of products sold 2020 $ 34,791 14,630 $ 30,998 13,856 Gross margin $ 20,161 $ 17,142 $ 12,786 Required: a. Calculate the gross profit ratio for each of the past three years. b. Assume that Campbell's net sales for the first four months of 2021 totaled $12.40 billion. Calculate an estimated cost of goods sold and gross profit for the four months, using the gross profit ratio for 2020. Complete this question by entering your answers in the tabs below. Required A Required B