the matsui lubricants plant uses the FIFO method to account for its work in process inventories. the accounting records show the following information for a particular day.

Beginning WIP inventory

direct materials $976

conversion cost $272

current period costs

direct materials $11,440

conversion cost $6,644

quantity information is obtained from the manufacturing records and includes the following:

beginning inventory 600 units (60% complete to materials and 53% complete to conversion)

current period units started 4000 units

ending inventory 1200 units (40% complete to materials and 20% complete to conversion)

a. compute the equivalent units for the materials and conversion cost calculations

b. compute the cost per equivalent unit for direct materials and for conversion costs using the FIFO method