Maria Am Corporation uses a process costing system. The Baking Department is one of the pro- cessing departments in its strudel manufacturing facility. In June in the Baking Department, the cost of beginning work in process inventory was $3,570, the cost of ending work in process inven- tory was $2,860, and the cost added to production was $43,120. Maria Am Corporation uses a process costing system. The Baking Department is one of the pro- cessing departments in its strudel manufacturing facility. In June in the Baking Department, the cost of beginning work in process inventory was $3,570, the cost of ending work in process inven- tory was $2,860, and the cost added to production was $43,120.