Mammoth Co. is a manufacturer of wool cloth. The information for May is as follows:

Beginning work in process 20,000 units

Units started 40,000 units

Units completed 50,000 units

Beginning work-in-process direct materials $ 12,000

Beginning work-in-process conversion $ 5,200

Direct materials added during month $60,000

Direct manufacturing labour during month $24,000

Factory overhead $ 10,000

Beginning work in process was half converted as to labour and overhead. Direct materials are added at the beginning of the process. All conversion costs are incurred evenly throughout the process. Ending work in process was 60% complete.

Prepare the production cost using weighted average method