Final answer:
The overhead volume variance for November is $6,820, and it is unfavorable.
Step-by-step explanation:
The overhead volume variance can be calculated by multiplying the standard overhead rate per unit by the difference between the predicted units and actual units produced. In this case, the standard variable overhead rate is $3.10 per unit. The difference between the predicted units (12,000) and actual units produced (9,800) is 2,200 units. Therefore, the overhead volume variance is $3.10 * 2,200 units = $6,820.
The overhead volume variance is unfavorable because it represents the difference between the standard cost of the overhead and the actual cost incurred. In this case, the actual cost of the overhead is higher than the standard cost, indicating that more overhead was incurred than anticipated.