Waterway Industries's accounting records reflect the following inventories: Dec. 31, 2017 Dec. 31, 2016 Raw materials inventory $280000 $230000 Work in process inventory 300000 160000 Finished goods inventory 190000 150000 During 2017, $770000 of raw materials were purchased, direct labor costs amounted to $670000, and manufacturing overhead incurred was $640000.

The total raw materials available for use during 2017 for Waterway Industries is $720000. $1050000. $1000000. $630000.