The following is monthly budgeted cost and activity information for two activities in the purchasing department of X Company: Fixed Costs Cost Driver Activity Supplier relations Invoicing Variable Costs $5,040 $8,400 $ 16,900 $27,200 210 suppliers 840 invoices In November, actual costs and activity were as follows: Activity Supplier relations Invoicing Total Costs $24,292 $35,446 Driver Amount 274 suppliers 868 invoices What was the flexible budget variance for the supplier relations activity for November (assume that favorable variances are positive numbers and unfavorable variances are negative numbers)