A company's flexible budget for 55,000 units of production showed variable overhead costs of $101,750 and fixed overhead costs of $71,000. The company incurred overhead costs of $156,680 while operating at a volume of 47,000 units. The total controllable cost variance is:

Multiple Choice

$1,270 favorable.

$1,270 unfavorable.

$16,070 favorable.

$18,070 favorable.

$16,070 unfavorable.