Mundes Corporation uses the weighted-average method in its process costing system. The beginning work in process inventory in its Painting Department consisted of 2,400 units that were 60% complete with respect to materials and 40% complete with respect to conversion costs. The cost of the beginning work in process inventory in the department was recorded as $9,200. During the period, 8,400 units were completed and transferred on to the next department. The costs per equivalent unit for the period were $4.40 for material and $5.40 for conversion costs. The cost of units transferred out during the month was:

• $45,360

• $81,600

• $64,000

• $82,320