Question 3 Assuming that the direct materials used are $1780000, compute the total manufacturing costs using the following information. Raw materials inventory, January 1 $ 20000 Raw materials inventory, December 31 40000 Work in process, January 1 18000 Work in process, December 31 12000 Finished goods, January 1 40000 Finished goods, December 31 32000 Raw materials purchases 1800000 Direct labor 760000 Factory utilities 150000 Indirect labor 50000 Factory depreciation 400000 Operating expenses 420000 $3146000 $3560000 $2960000 $3140000