The total standard cost for variable overhead for May was:

A) $60,000.
B) $40,000.
C) $50,000.
D) $56,000.

Variable Overhead Efficiency Variance

The difference between the actual variable overhead costs incurred and the expected (or standard) costs, based on efficient usage of resources.

Actual Labour Hours

The real amount of labor time spent by employees on the production of goods or provision of services.

Standard Labour Rate

The pre-determined cost per unit of labor time, used in calculating labor expenses in manufacturing.