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E9.6 (LO 3), AP Veneer Corp. has been making and selling a variety of tabletops for many years. L'Adell, product manager for two versions of the company's tabletop products, Marbled and Solid, was comparing sales volumes for these two types of products. While she knew Veneer's sales for the Solid tops had been declining, she was surprised to see the competitors' tabletop sales had been increasing. Was there something she didn't understand about her products' costs? Veneer Corp. had always allocated MOH costs to its products using one cost driver: units produced. It made sense, as both products were of comparable size and went through the same process-though they did take different amounts of time in each area. She looked closely at the key activities and likely cost drivers and gathered the following information. Quantity of Cost Driver Activity Budgeted Cost Cost Driver Marbled Solid Machining $180,000 Machine hours 2,400 3,600 Assembly 250,000 Direct labor hours 16,000 9,000 Quality control 80,000 Quality control hours 650 350 Total $510,000 Units produced 1,200 1,800 Required a. Calculate the plant-wide MOH rate if Veneer continues to use units produced as its only allocation base. Calculate the MOH costs per unit for each product: Marbled and Solid. b. Calculate activity rates for MOH if Veneer uses the three key activities, along with each unique cost driver, as noted above. Calculate the MOH costs per unit for each product: Marbled and Solid