Voice Com desires a profit equal to a 16% rate of return on invested assets of $601,800. a. Determine the amount of desired profit from the production and sale of 5,400 cell phones. b. Determine the product cost per unit for the production of 5,400 of cell phones. found your answer to the nearest whole dollat. per urit c. Determine the product cost markup percentage for cell phones. Found your answer to two decimal places. d. Determine the selling price of cell phones. Round your answers to the nearest whole dollat