Assume the following information appears in the standard cost card for a company that makes only one product:

Standard Quantity or Hours Standard Price or Rate Standard Cost

Direct materials $5$ pounds $ $11\mathrm{.}00$ per pound $ $55\mathrm{.}00$

Direct labor $2$ hours $ $17\mathrm{.}00$ per hour $ $34\mathrm{.}00$

Variable manufacturing overhead $2$ hours $ $2\mathrm{.}60$ per hour $ $5\mathrm{.}20$

During the most recent period, the following additional information was available:

$20,000$ pounds of material was purchased at a cost of $$10\mathrm{.}50$ per pound.

All of the material that was purchased was used to produce $3,900$ units.

$8,000$ direct labor$-$hours were recorded at a total cost of $$132,000.$

The actual variable overhead cost incurred during the period was $$25,000.$

Assuming the company uses direct labor$-$hours to compute its predetermined overhead rate, what is the variable overhead efficiency variance?