In order to find total equivalent units lets understand the term equivalent units. Equivalent units refer to units which have been processed fully, these units will also include the beginning and ending balance of Work in process inventory. In the given problem there is not beginning balance WIP, thus we shall first calculate total no of units that have been completely processed as below:
Units completely processed= Total Units put in-Ending Inventory
=2500-1100
=1400units
Thus Units completed will be 1400 units for both Materials and conversion cost.
We now find equivalent units completely processed for Materials in the ending invnetory.
Ending Inventory=1100 units, Since 60% of it is completed with respect to materials, the equivalent units= 660 units
Thus total equivent units for direct materials= 1400 units+660units
=2060units.