A company's flexible budget for the range of 42,000 units to 52,000 units of production showed variable overhead costs of $2 per unit and fixed overhead costs of $84,600. The company incurred total overhead costs of $174,840 while operating at a volume of 47000 units. The total controllable cost variance is: Multiple Choice $6,240 favorable ces $6.240 unfavorable $3760 favorable $3.760 unfavorable $10,000 favorable