Product Cost Method of Product Costing Voice Com, Inc., uses the product cost method of applying the cost-plus approach to product pricing. The costs of producing and selling 4,940 units of cell phones are as follows: Voice Com desires a profit equal to a 15% rate of return on invested assets of $601,700. a. Determine the amount of desired profit from the production and sale of 4,940 units of cell phones. 1 b. Determine the product cost per unit for the production of 4,940 of cell phones. If required, round your answer to nearest dollar, per unit c. Determine the product cost markup percentage (rounded to two decimal places) for cell phones. % d. Determine the selling price of cell phones. Round to the nearest dollar