Waterway Industries's accounting records reflect the following inventories: Dec. 31, 2020 Dec. 31, 2019 $340000 $280000 Raw materials inventory Work in process inventory Finished goods inventory 300000 160000 190000 150000 During 2020, $830000 of raw materials were purchased, direct labor costs amounted to $670000, and manufacturing overhead incurred was $640000. Waterway Industries's total manufacturing costs incurred in 2020 amounted to Next O $2080000. O $2140000. O $1940000. $2040000