content area top Part 1 In fiscal year , Walmart Inc. (WMT) reported annual revenue of billion, gross profit of billion, and net income of billion. Costco Wholesale Corporation (COST) had revenue of billion, gross profit of billion, and net income of billion. a. Compare the gross margins for Walmart and Costco. b. Compare the net profit margins for Walmart and Costco. c. Which firm was more profitable in ? Question content area bottom Part 1 a. Compare the gross margins for Walmart and Costco. The gross margin for Walmart is 24.88%. (Round to two decimal places.) Part 2 The gross margin for Costco is 12.99%. (Round to two decimal places.) Part 3 b. Compare the net profit margins for Walmart and Costco. The net profit margin for Walmart is 2.84%. (Round to two decimal places.) Part 4 The net profit margin for Costco is 2.40%. (Round to two decimal places.) Part 5 c. Which firm was more profitable in ? (Select from the drop-down menu.) Walmart Costco Walmart was more profitable in