Exercise 8-20 (Algo) Compute Equivalent Units: Weighted-Average Method (LO 8-1, 3) Trevor Mills produces agricultural feed at its only plant. Materials are added at the beginning of the process. Information on work-inprocess in December follows: - Beginning inventory, 30,000 partially complete units, 10 percent complete with respect to conversion costs. - Units started in December, 91,000 units. - Units transferred out in December, 87,000 units. - Ending inventory, 34,000 units, 62 percent complete with respect to conversion costs. Required: Compute the equivalent units for materials and conversion costs for December using the weighted-average method