4. The Barrington Company manufactures a high-quality plastic pipe that goes through three processing stages prior to completion. Information on work in the first department, Cutting, is given below for May: Production data: Pounds in process, May 1: materials 100% complete; 64,000 290,000 conversion 90% complete Pounds started into production during May Pounds completed and transferred to the next department Pounds in process, May 31: materials 60% complete; conversion 40% complete 24,000 Cost data: Work in process inventory, May 1 Materials cost Conversion cost $ 69,500 23,500 Cost added during May: Materials cost Conversion cost $ 361,000 129,320 The company uses the weighted-average method. Required: 1. Compute the equivalent units of production Materials Conversion Equivalent units of production