TB MC Qu. 4-35 (Algo) The Richmond Corporation uses the weighted-average... The Richmond Corporation uses the weighted average method in its process costing system. The company has only a single processing department. The company's ending work in process inventory on August 31 consisted of 20,000 units. The units in the ending work in process inventory were 100% complete with respect to materials and 60% complete with respect to labor and overhead If the cost per equivalent unit for August was $3.25 for materials and $4.75 for labor and overhead. the total cost assigned to the ending work in process inventory was