The following is monthly budgeted cost and activity information for two activities in the purchasing department of X Company:

Activity	Variable Costs	Fixed Costs	Cost Driver
Supplier relations	$10,140	$15,500	390 suppliers
Invoicing	$9,360	$26,500	720 invoices

In November, actual costs and activity were as follows:

Activity	Total Costs	Driver Amount
Supplier relations	$26,628	454 suppliers
Invoicing	$35,403	699 invoices

What was the flexible budget variance for the invoicing activity for November (assume that favorable variances are positive numbers and unfavorable variances are negative numbers)?

A: $-26,316

B: $-26,043

C: $-8,903

D: $0

E: $184

F: $457