David Corporation uses the weighted-average method in its process costing system. The first processing department, the Welding Department, started the month with 20,000 units in Its beginning work in process Inventory that were 80% complete with respect to conversion costs. The conversion cost in this beginning work in process inventory was $133, 200. An additional 85,000 units were started Into production during the month. There were 21,000 units in the ending work in process inventory of the Welding Department that were 15% complete with respect to conversion costs. A total of $419.250 in conversion costs were Incurred ln the department during the month. What would be the cost per equivalent unit for conversion costs for the month? $6.339 $6.577 $6.499 $4.811