Final answer:
To calculate the fixed overhead spending variance, subtract the budgeted fixed costs from the actual fixed costs. In this case, the variance is -$2,800, indicating an unfavorable variance.
Step-by-step explanation:
To calculate the fixed overhead spending variance, we need to compare the actual fixed costs with the budgeted fixed costs. The formula for fixed overhead spending variance is:
Fixed overhead spending variance = Actual fixed costs - Budgeted fixed costs
In this case, the actual fixed costs were $12,800 and the budgeted fixed costs were $15,600. Plugging these values into the formula, we get:
Fixed overhead spending variance = $12,800 - $15,600 = -$2,800
Since the result is negative, the fixed overhead spending variance is unfavorable (U).