Answer:
$84 unfavorable
Step-by-step explanation:
The computation of the activity variance for supplies cost is shown below:
Supplies cost for the standard one is
= $1,840 + (624 frames × $12 per frame)
= $9,328
And, the supplies cost for the actual one is
= $1,840 + (631 frames × $12)
= $9,412
So the activity variance is
= $9,328 - $9,412
= $84 unfavorable
As the standard cost is less than the actual one