Department X is the first stage of Sarena Solvents's production cycle. The following information is available for conversion costs for the month of December:

Physical Units
Beginning work-in-process inventory (60% complete)	48,000
Started in December	533,000
Completed in December and transferred to Department Y	514,500
Ending work-in-process inventory (40% complete)	66,500

Using the FIFO method, the equivalent units for the conversion cost calculation are:

Multiple Choice

557,000.

521,000.

525,000.

539,000.

None of the options are correct.