The overhead variances measure whether overhead costs Are Effectively Managed Were Used Effectively. O Controllable. Volume O Controllable and Volume. Controllable O Controllable. Controllable and Volume Volume, Controllable Budgeted overhead for Cinnabar Industries at normal capacity of 30,000 direct labor hours is $6 per hour variable and $4 per hour fixed. In May, $310,000 of overhead was incurred in working 31,500 hours when 32,000 standard hours were allowed. The overhead controllable variance is O $2,000 favorable. O $10,000 unfavorable. $5,000 favorable. $10,000 favorable. The overhead volume variance is O $11,000 favorable O $5,000 favorable. O $8,000 favorable O $10,000 favorable