The standard costs and actual costs for factory overhead for the manufacture of 2,500 units of actual production are as follows:

Standard Costs
Fixed overhead (based on 10,000 hours)	3 hours per unit @ $0.80 per hour
Variable overhead	3 hours per unit @ $2.00 per hour
Actual Costs
Total variable cost, $19,000
Total fixed cost, $8,000

The variable factory overhead controllable variance is