Manufacturing Income Statement, Statement of Cost of Goods Manufactured Several items are omitted from the income statement and cost of goods manufactured statement data for two different companies for the month of December: On off Company Company Materials inventory, December 1 $66,500 $89,110 Materials inventory, December 31 (a) 100,690 Materials purchased 168,910 (a) Cost of direct materials used in production 178,220 (b) Direct labor 250,710 200,500 Factory overhead 77,810 99,800 Total manufacturing costs incurred in December (b) 576,540 Total manufacturing col 634,420 634,420 Work in process inventory, December 1 127,680 214,760 Work in process inventory, December 31 107,730 (c) Cost of goods manufactured (c) 571,200 Finished goods inventory, December 1 112,390 99,800 Finished goods inventory, December 31- 117,710 (d) 980,210 891,100. Sales (d) 576,540