The following data refers to one month for Talmidge Company. Fill in the blanks. Direct materials inventory, March 1 $ 36,000 Direct materials inventory, March 31 23,500 Work-in-process inventory, March 1 7,000 Work-in-process inventory, March 31 Finished goods inventory, March 1 34,000 Finished goods inventory, March 31 39,500 Purchases of direct materials Cost of goods manufactured during the month 150,000 Total manufacturing costs 147,000 Cost of goods sold Gross margin Direct labor 195,500 70,000 51,000 Direct materials used Manufacturing overhead Sales revenue 340,000