Viger Corporation has a standard cost system in which it applies manufacturing overhead to products on the basis of standard machine-hours (MHs). The company has provided the following data for the most recent month:

Budgeted level of activity	9,100 machine-hours
Actual level of activity	9,300 machine-hours
Standard variable manufacturing overhead rate	$7.80 per machine-hour
Actual total variable manufacturing overhead	$69,920

What was the variable overhead rate variance for the month?