The following table gives salos, product cost, and cost-to-serve data for a company that makes three product lines: A, B, and C. The company has two customer type. (Click the icon to view the sales and product cost information.) The cost to serve all customers is $13.455 and is allocated to customer types based on the number of manager visits to customer locations for pre-and post-sales support. Read the Requirement 1. Complete the following table to determine the gross profit margin percentage of sales for each product. (Round the percentages to the nearest tenth procent, XX\%.) 1. Determine the gross profit margin percentage of sales for each product. Which product is the most profitable? 2. Determine the gross profit margin and the gross profit margin percentage of sales for each customer type. 3. Determine the cost-to-serve percentage of sales for each customer type. 4. Determine the operating income and operating income percentage of sales for each customer type. 5. Which customer is the most profitable based the following profitability measures: a. Gross margin b. Gross margin percentage of sales c. Operating income d. Operating income percentage of sales