3. OriceMart has found an error in its data. The percentage of seling and administrative overhead attributable to processing orders should be changed to 35% from 45% and the percentage attributable to supporting customers should be changed to 35% from 20% B D 1 Chapter 7: Applying Excel 2 3 Data Manufacturing overhoad 5 Selling and administrative overhead 6 7 $ $ 500.000 300,000 Other Assembling Units 50% 10% 1,000 Processing Orders 35% 35% 250 Supporting Customers 5% 35% 8 Manufacturing overhead Selling and administrative overhead 10% 20% 100 10 Total activity 11 Required information 12 13 OfficeMart orders: 14 Customers 15 Orders 16 Number of filing cabinets ordered in total 17 Selling price 18 Direct materials 19 Direct labor 1 cunner 21 orders 80 units 595 180 50 $ $ $ (a) Based on new number of orders in Requirement 2, what is the customer margin under activity-based costing when th corrected? (Enter a loss as a negative amount.) Customer margin under activity-based costing $ 14,600