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:

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:

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.