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 Actual level of activity Standard variable manufacturing overhead rate Actual total variable manufacturing overhead 8,200 MHs 8,400 MHs $ 6.90 per MH $55, 610 What was the variable overhead rate variance for the month