Porter Company uses standard costs for its manufacturing division. Standards specify

0.1

direct labor hours per unit of product. The allocation base for variable overhead costs is direct labor hours. At the beginning of the year, the static budget for variable overhead costs included the following data:

Production volume	6,300 units
Budgeted variable overhead costs	$16,000
Budgeted direct labor hours (DLHr)	630 hours

At the end of the year, actual data were as follows:

Production volume	4,000 units
Actual variable overhead costs	$15,000
Actual direct labor hours (DLHr)	505 hours

What is the variable overhead efficiency variance? (Round any intermediate calculations to the nearest cent, and your final answer to the nearest dollar.)