Keller Company makes two models of battery-operated boats, the Sandy Beach and the Rocky River. Basic production information follows: Sandy Beach Rocky River Direct materials cost per unit $20 $28 Direct labor cost per unit 15 19 Sales price per unit 70 90 Expected production per month 1.200 units 960 units Keller has monthly overhead of $22,360, which is divided into the following cost pools: Setup costs $ 5,200 Quality control 11,000 Maintenance 6,160 Total $22. SOU The company has also compiled the following information about the chosen cost drivers: Sandy Beach Rocky River Total Number of setups 14 26 40 Number of inspections 140 300 440 Number of machine hours 1.400 1.400 2,800 Required: 1. Suppose Keller uses a traditional costing system with machine hours as the cost driver. Determine the amount of overhead assigned to each product line. 2. Calculate the production cost per unit for each of Keller's products under a traditional costing system. . 3. Calculate Keller's gross margin per unit for each product under the traditional costing system. 4. Select the appropriate cost driver for each cost pool and calculate the activity rates if Keller wanted to implement an ABC system. 5. Assuming an ABC system, assign overhead costs to each product based on activity demands. 6. Calculate the production cost per unit for each of Keller's products with an ABC system. 7. Calculate Keller's gross margin per unit for each product under an ABC system. 8. Compare the gross margin of each product under the traditional system and ABC. Explain the change in profitability for each product