Controllable variance: Actual variable factory overhead 542,000 Standard variable factory overhead at actual production: 92,500 Standard hours at actual production $6.00 Variable factory overhead rate 555,000 Standard variable factory overhead (13,000) favorable Controllable variance Volume variance: Volume at 100 % of normal capacity 100,000 92,500 Less standard hours 7,500 Idle capacity $2.40 Fixed overhead rate unfavorable 18,000 Volume variance- Total factory overhead cost variance unfavorable $ 5,000