The beginning work in process inventory in the Milling Department consisted of 10,000 units, 50% complete with respect to materials cost and 60% complete with respect to conversion costs. The total cost of the beginning inventory was $60,000. During the month, 50,000 units were transferred out of this department. The equivalent unit cost was computed to be $4.00 for materials and $7.40 for conversion costs under the weighted-average method. Given this information, the total cost of the units completed and transferred out of this department during the month was:

$480,000.

$510,000.

$570,000.

$540,000.