David Corporation uses the weighted-average method in its process costing system. The first processing department, the Welding Department, started the month with 22,000 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 $128, 200. An additional 75,000 units were started into production during the month. There were 20,000 units in the ending work in process inventory of the Welding Department that were 10% complete with respect to conversion costs. A total of $404, 250 in conversion costs were incurred in the department during the month. What would be the cost per equivalent unit for conversion costs for the month? $6.740 $5, 117 $6.915 $7.099