Answer: 60%
Explanation:
Find the ending work in process.
Materials are complete at inception so the Equivalent units of Materials represent the total units.
Ending WIP will therefore be:
= Materials EUP - Units started and completed
= 5,000 - 3,500
= 1,500 units
Stage of completion is based on Conversion.
Conversion EUP = Total started and completed + (x% * Closing WIP)
4,400 = 3,500 + (x% * 1,500)
4,400 = 3,500 + 15x
15x = 4,400 - 3,500
15x = 900
x = 900/15
x = 60%
Conversion is 60% complete so this is the stage of completion.