Desserts by Jacki's variable overhead cost information for pies last quarter was as follows Actual production in pies 18,000 pies Standard variable overhead cost per pie 3/4 hour  $5 per hour Actual variable overhead cost for pies $70,000 Actual labor hours worked 9,000 hours.

Assuming Desserts by Jacki's applies overhead based on direct labor hours, What was the variable overhead efficiency variance for pies?