Classify various costs into different categories and prepare cost of services performed schedule. (LO 2, 3). AP E1-13 Keisha Tombert, the bookkeeper for Washington Consulting, a political consulting firm, has recently completed a managerial accounting course at her local college. One of the topics covered in the course was the cost of goods manufactured schedule. Keisha wondered if such a schedule could be prepared for her firm. She realized that, as a service-oriented company, it would have no work in process inventory to consider Listed below are the costs her firm incurred for the month ended August 31, 2017 Supplies used on consulting contracts $ 1,700 Supplies used in the administrative offices 1,500 Depreciation on equipment used for contract work 900 Depreciation used on administrative office equipment 1,050 Salaries of professionals working on contracts 15,600 Salaries of administrative office personnel 7,700 Janitorial services for professional offices 700 Janitorial services for administrative offices 500 Insurance on contract operations Insurance on administrative operations 900 Utilities for contract operations 1,400 Utilities for administrative offices 1,300 800