The Maxwell Corporation has a standard costing system in which variable manufacturing overhead is assigned to production on the basis of standard machine-hours. The following data are available for July:
• Actual variable manufacturing overhead cost incurred: $23,280
• Actual machine-hours worked: 1,900 hours
• Variable overhead rate variance: $3,870 Unfavorable
• Total variable overhead spending variance: $5,280 Unfavorable
The variable overhead efficiency variance for July is:
A. $9,150 Unfavorable
B. $1,410 Unfavorable
C. $1,410 Favorable
D. $9,150 Favorable