Marvel Parts, Incorporated, manufactures auto accessories. One of the company$$s products is a set of seat covers that can be adjusted to fit nearly any small car. The company has a standard cost system in use for all of its products. According to the standards that have been set for the seat covers, the factory should work $980$ hours each month to produce $1,960$ sets of covers. The standard costs associated with this level of production are:

Total Per Set of Covers

Direct materials $ $32,340$ $ $16\mathrm{.}50$

Direct labor $ $6,8603\mathrm{.}50$

Variable manufacturing overhead $($based on direct labor$-$hours$)$ $ $1,9601\mathrm{.}00$

$ $21\mathrm{.}00$

During August, the factory worked only $1,000$ direct labor$-$hours and produced $2,100$ sets of covers. The following actual costs were recorded during the month:

Total Per Set of Covers

Direct materials $(6,000$ yards$)$ $ $34,020$ $ $16\mathrm{.}20$

Direct labor $ $7,7703\mathrm{.}70$

Variable manufacturing overhead $ $3,9901\mathrm{.}90$

$ $21\mathrm{.}80$

At standard, each set of covers should require $2\mathrm{.}5$ yards of material. All of the materials purchased during the month were used in production.

Required:

$1.$ Compute the materials price and quantity variances for August.

$2.$ Compute the labor rate and efficiency variances for August.

$3.$ Compute the variable overhead rate and efficiency variances for August.