Company creates its units in a machining department first and then runs the units through a testing department. Company uses weighted average method. The following information is for the testing department this period

Beg inv. 15,000 units

Units transferred in ?

Units completed 25,000 units

End inv. 5000 units

Beg inv is 70% completed

Ending inv is 40% completed

DM are added at the beginning of the process