Problem $10-9($Algo$)$ Comprehensive Variance Analysis $[$LO$10-1,$ LO$10-2,$ LO$10-3]$

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 $630$ hours each month to produce $2,100$ sets of seat covers. The standard costs associated with this level of production are:

Total Per Set of Covers

Direct materials $ $38,640$ $ $18\mathrm{.}40$

Direct labor $ $6,3003\mathrm{.}00$

Variable manufacturing overhead $($based on direct labor$-$hours$)$ $ $3,1501\mathrm{.}50$

$ $22\mathrm{.}90$

During August, the factory worked $500$ direct labor$-$hours and produced $2,000$ sets of covers. The following actual costs were recorded during the month:

Total Per Set of Covers

Direct materials $(5,000$ yards$)$ $ $36,000$ $ $18\mathrm{.}00$

Direct labor $ $6,4003\mathrm{.}20$

Variable manufacturing overhead $ $4,4002\mathrm{.}20$

$ $23\mathrm{.}40$

At standard, each set of covers should require $2\mathrm{.}3$ 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.