Direct Labor-Hours per Unit Annual Production Total Direct Labor-Hours Model N 800 XL 3.0 Model N 500 1.0 3,000 units 12,000 units 9,000 12,000 21,000 Additional information about the company follows: a. Model N 800 XL requires $75 in direct materials per unit, and Model N 500 requires $25. b. The direct labor wage rate is $18 per hour. c. The company has always used direct labor-hours as the base for applying manufacturing overhead cost to products. d. Model N 800 XL is more complex to manufacture than Model N 500 and requires the use of special equipment. Consequently, the company is considering the use of activity-based costing to assign manufacturing overhead cost to products. Three activity cost pools have been identified as follows: Activity Cost Pool Machine setups Special processing General factory Activity Measure Number of setups Machine-hours Direct labor-hours Estimated Overhead Cost $ 360,000 165,000 1,260,000 $1,785,000 Activity Measure Number of setups Machine-hours Direct labor-hours Required: Page 185 Expected Activity Model N 800 XL Model N 500 Total 100 200 300 16,500 0 16,500 9.000 12,000 21,000 4 Required: 1. Assume that the company continues to use direct labor-hours as the base for applying overhead cost to products. a. Compute the predetermined overhead rate. b. Compute the unit product cost of each model. 2. Assume that the company decides to use activity-based costing to assign manufacturing overhead cost to products. a. Compute the activity rate for each activity cost pool and determine the amount of overhead cost that would be assigned to each model using the activity-based costing system. b. Compute the unit product cost of each model. 3. Explain why manufacturing overhead cost shifts from Model N 500 to Model N 800 XL under activity-based costing