Assume that officemart places orders more frequently, but everything else remains the same. on your worksheet increase the number of orders from 4 to 14. (prior to completing this requirement, change all worksheet figures back to their original amounts.) (a) what is the customer margin under activity-based costing when the number of orders increases to 14? (enter a loss as a negative amount.) _ (b) what is the product margin under the traditional costing system when the number of orders increases to 14? (enter a loss as a negative amount.)