Stoltenberg Co. had the following information for the month of June:
	Work in process beginning inventory, June 1					2,100	units
	Units transferred in					17,200	units
	Work in process ending inventory, June 30					4,200	units
Beginning work-in-process inventory is 30 percent complete as to conversion. Ending work-in-process inventory is 50 percent complete as to conversion. Materials are added at the end of the process.
The equivalent units for conversion under the weighted average method are calculated to be: