sing the following information, compute the cost of direct materials used. Raw materials inventory, January 1 $ 20000 Raw materials inventory, December 31 50000 Work in process, January 1 27000 Work in process, December 31 18000 Finished goods, January 1 60000 Finished goods, December 31 48000 Raw materials purchases 1600000 Direct labor 890000 Factory utilities 225000 Indirect labor 75000 Factory depreciation 500000 Operating expenses 630000 $1570000. $1620000. $1600000. $1550000.