Marvel Parts, Incorporated, manufactures auto accessories including a set of seat covers that can be adjusted to fit most cars. According to its standards, the factory should work $1,075$ hours each month to produce $2,150$ sets of seat covers. The standard costs associated with this level of production are:

Total Per Set of Covers

Direct materials $ $54,825$ $ $25\mathrm{.}50$

Direct labor $ $10,7505\mathrm{.}00$

Variable manufacturing overhead $($based on direct labor$-$hours$)$ $ $5,3752\mathrm{.}50$

$ $33\mathrm{.}00$

During August, the factory worked $800$ direct labor$-$hours and produced $2,500$ sets of covers. The following actual costs were recorded during the month:

Total Per Set of Covers

Direct materials $(12,500$ yards$)$ $ $58,750$ $ $23\mathrm{.}50$

Direct labor $ $13,0005\mathrm{.}20$

Variable manufacturing overhead $ $7,0002\mathrm{.}80$

$ $31\mathrm{.}50$

At standard, each set of covers should require $3\mathrm{.}0$ yards of material. All of the materials purchased during the month were used in production.

Required:

Compute the materials price and quantity variances for August.

Compute the labor rate and efficiency variances for August.

Compute the variable overhead rate and efficiency variances for August.

Note: Do not round intermediate calculations. Indicate the effect of each variance by selecting $"$F$"$ for favorable, $"$U$"$ for unfavorable, and "None" for no effect $($i$.$e$.,$ zero variance$).$ Input all amounts as positive values.