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
Salaries	26,700
Equipment depreciation	39,160
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.

What should be the spending variance for supplies cost in the flexible budget performance report for the month ?