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) Power (@ $3.80 per machine-hour) Salaries Equipment depreciation Total $ 19,580 33,820 26,700 39,160 $ 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 supplies cost for the month should be