The Mihaylo Company follows the proration approach in making year-end adjustments. In 2019, the amount allocated ($10,000) was different from the actual amount incurred ($12,000). The actual results are as follows:

Account	Balance (before proration)	Allocated Overhead (before proration)
Work-in-Process	$10,000	$2,000
Finished Goods	$20,000	$3,000
Cost of Goods Sold	$70,000	$5,000

What is the ending balance of Cost of Goods Sold after proration, assuming proration is based on the manufacturing overhead allocated before proration?

Group of answer choices

$71,000

$72,000

$80,000

$90,000