Moncrief Corporation bases its budgets on machine-hours. The company's static planning budget for July appears below. Budgeted number of machine-hours Supplies ($8.60 per machine-hour) Power (@$8.80 per machine-hour) Salaries Equipment depreciation Total Actual results for the month were: 1,000 $ 8,600 8,800 11,300 9,900 $ 38,600 Actual number of machine-hours 1,200 Supplies Power Salaries Equipment depreciation $ 10,290 $ 10,860 $ 11,690 $ 9,990 The spending variance for power costs in the flexible budget performance report for the month should be: