Answer:
$494,000
Explanation:
Days Amount Estimated % Estimated amount
outstanding Uncollectible uncollectible
0-30 $420,000 2% $8,400
31-60 $140,000 5% $7,000
61-120 $100,000 10% $10,000
120+ $120,000 20% $24,000
Total $494,000
Thus, Jacobsen should report $494,000 as the amount of allowance for uncollectible accounts at December 31, 2021