Product Cost Concept of Product Pricing Willis Products Inc. uses the product cost concept of applying the cost-plus approach to product pricing. The costs of producing and selling 5,000 units of medical tablets are as follows: Variable costs per unit: Fixed costs: Direct materials Factory overhead $135 $235,000 Direct labor Selling and admin. exp. 49 80,000 Factory overhead 42 Selling and admin. exp. 34 $260 Total Willis Products desires a profit equal to a 25% rate of return on invested assets of $420,000. a. Determine the total manufacturing costs for the production and sale of 5,000 units. Total Manufacturing Costs Variable 245,000 Fixed factory overhead 210,000 %24 455,000 Total Determine the cost amount per unit for the production and sale of 5,000 units. 91 per unit b. Determine the product cost markup percentage per unit. Round your percentage answer to one decimal place. % c. Determine the selling price per unit. Use the rounded product cost markup percentage in your calculations, and round the amount of the markup to the nearest whole dollar. per unit