Question - Tuscola Pharmacy is a drug store that has traditionally allocated its overhead based on the number of prescriptions in each customer's order. Some orders come from walk-in customers and other orders come from an arrangement with a local ready care clinic to fill orders for its clients. Tuscola's general manager would like to simplify operations and accept either walk-in customers or clinic clients, but not both. The controller provided the following information about overhead costs using activity-based costing to assist the manager in making the decision:
| Cost Pools | Total Annual Estimated Costs | Cost Driver | Total Annual Estimated Cost Driver   Activity | 
| Pharmacy occupancy costs (i.e., utilities, rent, and other costs) | $96,000 | Technician hours | 8,800 | 
| Packaging supplies (i.e., bottles, bags, and other packaging) | $35,000 | Number of prescriptions | 16,000 | 
| Professional training and insurance costs | $96,000 | Pharmacists hours | 4,400 | 
| Total pharmacy overhead | $227,000 |   |   | 
 
| Customer Order Number | Technician Hours | Number of Prescriptions | Pharmacist Hours | 
| #R1137 | 0.4 | 3 | 0.6 | 
| #S2013 | 0.4 | 1 | 0.2 | 
Tuscola's accounting clerk gathered the following information regarding two recent pharmacy orders. Orders starting with "R" relate to walk-in customers and those starting with "S" relate to clinic clients. Answer the following questions.
1. Calculate the amount of overhead that would be charged to order #R1137 if traditional costing rates were used.
2. How much overhead would be allocated to order #R1137 if activity-based costing was used?
3. By how much is Order #S2013 over- or under-costed when using traditional costing compared to ABC costing? Enter an over-costed amount as a positive number and under-costed amount as a negative number.
Please give answers with process.