Product Cost Mebhod of Product Costing Voice Com, thc, uses the product cost method of applying the cost-plus approach to product pricing, The costs of producing and selling 4,550 cell phones are as follows: Voice Com desires a profit equal to a 13% rate of return on invested assets of $600,500. a. Determine the amount of desired proft from the production and sale of 4,550cell phones. b. Determine the product cost per unit for the production of 4,550 of ceil phones. Round your answer to the nearest whole doilar. per unit c. Detarmine the product cost markap perceotage for coll phones. Round your answer to two decimal places