3. Office Mart has found an error in its data. The percentage of selling and administrative overhead attributable to processing orders should be changed to 30% from 45% and the percentage attributable to supporting customers should be changed to 40% from 25%. (a) Based on new number of orders in Requirement 2, what is the customer margin under activity-based costing when the data are corrected? (Enter a loss as a negative amount.) (b) Based on new number of orders in Requirement 2 , what is the product margin under the traditional costing system when the data are corrected? (Enter a loss as a negative amount.)