EX 9-4 Activity bases for service department charges For each of the following service departments, select the activity base listed that is most appropriate for charging service expenses to responsible units: Obj. 3 Base Service A. Accounts Receivable B. Central Purchasing C. Computer Support 1. 2. 3. 4. S. 6. 7. 8. Number of conference attendees Number of computers Number of employees trained Number of cell phone minutes used Number of purchase requisitions Number of sales invoices Number of payroll checks Number of travel claims E. Employee Travel F. Payroll Accounting G. Telecommunications H. Training EX 9-5 Service department charges Obj. 3