Answer:
$2,010 Unfavorable
As this is not in option, but correct answer is this only.
Explanation:
Material Usage variance = (Standard Quantity - Actual Quantity) [tex]\times[/tex] Standard Price
Standard Quantity for actual output of 20,100 units = 20,100 [tex]\times[/tex] 9 = 180,900 pounds
Actual Quantity = 20,100 [tex]\times[/tex] 9.1 = 182,910 pounds
Material Usage Variance = (180,900 - 182,910) [tex]\times[/tex] $1
= - $2,010
since the amount is negative because actual usage was more than standard usage, the variance is unfavorable.