Jarvey 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 (MHs) 6,100
- Actual level of activity (MHs) 6,300
- Cost formula for variable overhead cost (per MH) $6.70
- Budgeted fixed manufacturing overhead cost $42,000
- Actual total variable overhead $41,580
- Actual total fixed manufacturing overhead $45,000
What was the variable overhead rate variance for the month?