Assuming that the direct materials used are $1560000, compute the total manufacturing costs using the following information. Raw materials inventory, January 1 Raw materials inventory, December 31 Work in process, January 1 Work in process, December 31 Finished goods, January 1 Finished goods, December 31 Raw materials purchases Direct labor Factory utilities Indirect labor Factory depreclation Operating expenses $ 20000 40000 18000 12000 40000 32000 1580000 760000 150000 50000 400000 420000 O$2920000 O $3340000 O $2926000 $2740000