Work-in-process inventory, 12/31 Finished goods inventory, 1/1 Direct labor costs incurred Manufacturing overhead costs Direct materials inventory, 1/1 Finished goods inventory, 12/31 Direct materials purchased Work-in-process inventory, 1/1 Direct materials inventory, 12/31 $57,900 307,400 1,004,300 2,693,400 250,800 511,000 1,750,200 101,000 169,400 Required 1. Compute the direct materials used during the year. 2. Compute the total manufacturing costs incurred during the year. 3. Compute the cost of goods manufactured during the year. 4. Compute the cost of goods sold during the year