Medlar Corporation's static planning budget for June appears below. The company bases its budgets on machine-hours.

Budgeted number of machine-hours$8,900

Supplies (@ $2.20 per machine-hour)19,580

Power (@ $3.80 per machine-hour)33,820

Salaries26,700

Equipment depreciation39,160

Total$119,260

In June, the actual number of machine-hours was 9,300, the actual supplies cost was $19,760, the actual power cost was $35,720, the actual salaries cost was $27,130, and the actual equipment depreciation was $39,430.

The spending variance for power cost in the flexible budget performance report for the month should be: