CS EXERCISE 8-20 Appendix 8B) Activity-Based Costing Product Costs for External Reports (L07] Kunkel Company makes two products and uses a traditional costing system in which a single plant- wide predetermined overhead rate is computed based on direct labor-hours. Data for the two products for the upcoming year follow: Direct materials cost per unit Direct labor cost per unit ........... Direct labor-hours per unit... Number of units produced Mercon Wurcon $10.00 $8.00 $3.00 $3.75 0.20 0.25 10,000 40,000 These products are customized to some degree for specific customers. Required: 1. The company's manufacturing overhead costs for the year are expected to be $336,000. Using the company's traditional costing system, compute the unit product costs for the two products. 2. Management is considering an activity-based costing system in which half of the overhead would continue to be allocated on the basis of direct labor hours and half would be allocated on the ba sis of engineering design time. The Mercon product is expected to need 4,000 engineering design hours and the Wurcon product is also expected to need 4,000 engineering design hours. Compute the unit product costs for the two products using the proposed ABC system. 3. Explain why the unit product costs differ between the two systems