Total Cost Concept of Product Costing Willis Products Inc. uses the total cost concept of applying the cost-plus approach to product pricing. The costs of producing and selling 2,000 units of medical tablets are as follows: Variable costs per unit: Fixed costs Direct materials Direct labor Factory overhead Selling and admin. exp $114 42 35 29 Factory overhead $80,000 Selling and admin. exp. 26,000 Total Willis Products desires a profit equal to a 25% rate of return on invested assets of $224,952 a. Determine the amount of desired profit from the production and sale of 2,000 units. b. Determine the total costs for the production of 2,000 units Fixed Total