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BE 17-3 Equivalent units of materials cost Obj. 2 The Rolling Department of Kraus Steel Company had 200 tons in beginning work in process inventory ( 60% complete) on October 1. During October, 3,900 tons were completed. The ending work in process inventory on October 31 was 300 tons ( 25% complete). What are the total equivalent units for direct materials for October if materials are added at the beginning of the process