The Lakeside Company uses a weighted average process costing system. The following data are available: -- 28,000 22,400 Beginning inventory Units started in production Units finished during the period Units in process at the end of the period (complete as to materials, y complete as to labor and overhead) Cost of materials used Labor and overhead costs 5,600 $48,000 $47,000 Equivalent units of production for materials are: Multiple Choice O 22.400. 23,400. O 27,000. O 28,000