Use the following data to find the total direct labor variance if the company produced $3,500$ units during the period.

Direct labor standard $(4\mathrm{.}00$ hours @ $$\frac{6\mathrm{.}90}{?}$ hour$)$

$$27\mathrm{.}60$ per unit

Actual hours worked

$12,450$

Actual rate per hour

$$7\mathrm{.}30$