In the Shaping Department of Rollins Company the unit materials cost is $5.00 and the unit conversions cost is $3.00. The department transferred out 12,000 units and had 1,500 units in ending work in process 20% complete. If all materials are added at the beginning of the process, the total cost to be assigned to the ending work in process is 2,400 7,500 8,400 12,000.I need a help please.