Wright & Boyle Inc. had the following income statement for the month of May: Sales revenue $470,800.00 Cost of goods sold 217,766.40 Gross margin $ 253,033.60 Less: $86,199.20 Selling expenses Administrative expenses 74,942.80 Operating income $91,891.60 What was the cost of goods sold percent? (Note: Round answer to two decimal places.) a. 19.45% b. 100.51% C. 52.56% d. 46.25%