(TCO F) Farmington Corporation uses the weighted-average method in its process

(TCO F) Farmington Corporation uses the weighted-average method in its process costing system. Data concerning the first processing department for the most recent month are listed below.Work in process beginning:Units in beginning work-in-process inventory400Materials costs$6900Conversion costs$2500Percentage complete for materials80%Percentage complete for conversion15%Units started into production during the month6000Units transferred to the next department during the month5200Materials costs added during the month$112500Conversion costs added during the month$210300Ending work in process:Units in ending work-in-process inventory1200Percentage complete for materials60%Percentage complete for conversion30%Required:Calculate the equivalent units for materials (using the weighted-average method) for the month in the first processing department.