Total Cost Method of Product Pricing Smart Stream Inc. uses the total cost method of applying the cost-plus approach to product pricing. The costs of producing and selling 4,500 units ol cell phones are as follows: Smart stream desires a profit equal to a 15% return on invested assets of $463,200. a. Determine the total costs and the total cost amount per unit for the production and sale of 4,500 cellular phones. Round the cost per unit to two decimal places. b. Determine the total cost markup percentage for cellular phones. Round your answer to two decimal places. c. Determine the seling price of cellular phones. Round to the nearest cent. per cellular phone