Austin Corporation started its production operations on January 1. During January, the Mixing Department completed 20,000 units. There were 5,200 units in ending inventory which were 70% complete with respect to materials and 15% complete with respect to conversion costs. This created equivalent units for materials of 23,640 and equivalent units for conversion of 20,780. During January, the department accumulated materials costs of $56,928 and conversion costs of $81,523. Calculate the cost of ending inventory.

$8,772

$3,057

$11,830

$5,200