Purple Corporation uses the weighted average method in its process costing system. Data for its work in process department follows: Units Materials Conversion costs complete complete Beginning work in process inventory 86,000 20% 30W Ending work in process inventory 68,000 60% BOX Units completed and transferred out 580,000 Units started during the period 500,000 Compute equivalent units of production for conversion costs for the period 634,400 525,500 605,800 554,400