Answer:
$49,000
Step-by-step explanation:
$32,000 (Balance in allowance account)+ ($600,000 (sales) × 6%) - 19,000
=$32,000+$36,000- $19,000
=$68,000-$19,000
=$49,000
Therefore the balance in the refund liability account at the end of 2021 is $49,000