Ravena Labs., Inc. makes a single product which has the following standards:
Direct Materials 2.5 ounces at $20 per ounce
Direct Labor 1.4 hours at $12.50 per hour
Variable Manufacturing Overhead 1.4 hours at ? per hour
Variable manufacturing overhead is applied on the basis of direct labor hours. The following data are available for October:
3750 units of compound were produced during the month.
There was no beginning direct materials inventory
The ending direct materials inventory was 2000 ounces
Direct materials purchased: 12000 ounces for $225,000
Direct labor hours worked: 5600 hours at a cost of $67,200
Variable manufacturing overhead costs incurred amounted to $18200
Variable manufacturing overhead applied to products: $18,375
The variable overhead efficiency variance for October is: