Answer:
$1,836 unfavorable
Step-by-step explanation:
The computation of the activity variance for net operating income in July is shown below:
net income is
= $39.10 - $18.70
= $20.40
And, the difference in activity is
= 3,250 - 3,160
= 90
Now the activity variance for net operating income is
= $20.40 × $90
= $1,836 unfavorable