"Hayek Corporation uses the FIFO method in its process costing. The following data concern the company's Mixing Department for the month of August.

Materials Conversion

Work in process, August 1 $31,734 $30,320

Cost added to production in the Mixing Department during August $91,332 $81,864

Equivalent units of production for August 7,740 7,580

Required: What are the cost per equivalent unit for materials and the cost per equivalent for conversion for the Mixing Department for August using the FIFO method?"

I understand how to calculate the cost per equivalent unit, but I don't get what it means when asking me to use FIFO. I know what the acronym stands for but I'm unsure how to apply that to the calculations.