Malcolm Company uses a weighted average process costing system. All materials at Malcolm are added at the beginning of the production process. The equivalent units for materials at Malcolm would be the sum of: Multiple Choice 0 units in ending work in process and the units started. 0 units in beginning work in process and the units started. 0 units in ending work in process and the units started and completed. 0 units in beginning work in process and the units started and completed