Montreal Manufacturing Inc. has the following cost and production data for the month of April. Beginning WIP | 18,000 | units | Started in production | 103,100 | Completed production | 91,500 | Ending WIP | 29,600 | The beginning inventory was 60% complete for conversion costs. The ending inventory was 40% complete for conversion costs. Materials are added at the beginning of process. Costs pertaining to the month of April are as follows: Beginning inventory costs are: | Materials | $65,800 | Direct labour | 20,400 | Factory overhead | 14,000 | Costs incurred during April include: | Materials | $561,895 | Direct labour | 194,600 | Factory overhead | 374,521 | | | | |