During August, the factory worked only 600 direct labor-hours and produced 1,800 sets of covers. The following actual costs were recorded during the month: Direct materials (5,000 yards) Direct labor Variable manufacturing overhead Per Set Total of Covers $ 34,200 $19.00 $ 6,660 3.70 $ .140 2.30 $25.00 At standard, each set of covers should require 2.5 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 (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (.e., zero variance). Input all amounts as positive values.) 1. Materials price variance Materials quantity variance Laborrate variance Labor efficiency variance Variable overhead rate variance Variable overhead officiency variance