Voice Com, Inc. uses the product cost method of applying the cost-plus approach to product pricing. The costs of producing and selling 4,630 cell phones are as follows: Variable costs per unit: Voice Com desires a profit equal to a 134 return on invested assets of $601,600. a. Determine the amount of desired profit from the production and sale of 4,630 cell phones. b. Determine the product cost per unit for the production of 4,630 cell phones. Round your answer to the nearest whole dollar. per unit c. Determine the product cost markup percentage for cell phones. Round your answer to two decimal places. Voice Com desires a profit equal to a 13% return on invested assets of $601,600. a. Determine the amount of desired profit from the production and sale of 4,630 cell phones. b. Determine the product cost per unit for the production of 4,630 cell phones. Round your answer to the nearest whole dollar per unit c. Determine the product cost markup percentage for cell phones. Round your answer to two decimal places. % d. Determine the selling price of cell phones, Round your answers to the nearest whole dollar