The Panther Corporation uses a process system. During the current period, 2,500 units were started and 2,000 units were completed and transferred out. Ending units were 80% complete for materials and 45% complete for conversion costs. Direct materials costs added were $43,405 and conversion costs added were $27,870. There was no beginning WIP Inventory and conversion costs are added evenly throughout the process. At the end of the period, the cost per equivalent unit for direct materials would be closest to $18.09 $21.70 $12.53. $13.94