Burton Company produces top hats. They are comparing budgeted to actual results. Burton Company budgeted producing 10,000 hats each month. Here is the rest of their relevant information:

Selling price per hat: $50 each

Labor costs per hat: $15

Material costs per hat: $10

Fixed Costs per month: $160,000

Burton Company produces 8,000 hats in January. Their actual labor costs in January are $125,000. What is the flexible budget variance for labor costs?