January 1, 2020 December 31, 2020 Direct materials 31,000 50,000 Work in process 38,000 41,000 Finished goods 22,000 34,000 The following information was taken from DTD Company's accounting records for 2020: Sales revenue ........................................... $630,000 Direct materials purchased .............................. ? Depreciation, factory equipment ......................... 34,000 Prime costs ............................................. 250,000 Utilities (60% for factory; 40% for office building) .... 20,000 Sales commissions ....................................... 71,000 Indirect materials ...................................... ? Depreciation, office equipment .......................... 30,000 Rent, factory building .................................. 56,000 Net income .............................................. 10,000 Direct labor ............................................ ? Advertising ............................................. 68,000 Production supervisor's salary .......................... 74,000 Additional information: 1. Direct labor comprised 35% of the conversion costs for 2020. 2. The actual overhead cost for 2020 was equal to the overhead applied to production. Thus there was no overhead variance for 2020. Calculate DTD Company's indirect materials cost for 2020.