Fancy Doors, Inc., produces two types of doors, interior and exterior. The company's simple costing system has two direct-cost categories (materials and labor) and one indirect-cost pool. The simple costing system allocates indirect costs on the basis of machine-hours. Recently, the owners of Fancy Doors have been concerned about a decline in the market share for their interior doors, usually their biggest seller. Information related to Fancy Doors production for the most recent year follows: (Click the icon to view the production data.) Read the requirements. i (Click the icon to view additional information.) Interior Exterior Units sold 3,100 1,700 Selling price 145 $ 245 Direct material cost per unit Direct manufacturing labor cost per hour 45 $ 65 17 $ 17 Direct manufacturing labor-hours per unit 1.20 2.00 Production runs 40 90 Material moves 74 164 Machine setups Machine-hours Number of inspections 40 140 6,000 4,000 250 170 The owners have heard of other companies in the industry that are now using an activity-based costing system and are curious how an ABC system would affect their product costing decisions. After analyzing the indirect-cost pool for Fancy Doors, the owners identify six activities as generating indirect costs: production scheduling, material handling, machine setup, assembly, inspection, and marketing. Fancy Doors collected the following data related to the indirect-cost activities: Activity Activity Cost Activity-Cost Driver Production scheduling 102,700 Production runs Material handling 43,792 Material moves Machine setup 22,320 Machine setups Assembly 40,000 Machine-hours 14,700 Number of inspections Inspection Marketing costs were determined to be 4% of the sales revenue for each type of door. 1. Calculate the cost of an interior door and an exterior door under the existing simple costing system. 2. Calculate the cost of an interior door and an exterior door under an activity-based costing system. 3. Compare the costs of the doors in requirements 1 and 2. Why do the simple and activity-based costing systems differ in the cost of an interior door and an exterior door? 4. How might Fancy Doors, Inc., use the new cost information from its activity-based costing system to address the declining market share for interior doors?