Product cost method of product costing MyPhone, Inc. uses the product cost method of applying the cost-plus approach to product pricing. The costs of producing and selling 4,870 cell phones are as follows: Variable costs per unit: MyPhone desires a profit equal to a 15% return on invested assets of $600,800. a. Determine the amount of desired profit from the production and sale of 4,870 cell phones. $ b. Determine the product cost per unit for the production of 4,870 cell phones. Round your answer to the nearest whole dollar. $ X per unit c. Determine the product cost markup percentage for cell phones. Round your answer to two decimal places. x% d. Determine the selling price of cell phones. Round your answers to the nearest whole dollar. Total Cost X per unit Markup X per unit Selling price per unit