Northern Washington Lumber Company grows, harvests, and processes timber for use as building lumber. The following data pertain to the company's sawmill: Work-in-process inventory, January 1 (direct materials: 60%, conversion: 40%) 33,600 units Work-in-process inventory, December 31 (direct materials: 70%, conversion: 60%) 16,800 units During the year the company started 210,000 units in production. Required: 1. Prepare a physical flow schedule. 2. Compute the number of equivalent units of both direct materials and conversion for the year, using the weighted-average method