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Computation of Variable Cost Variances The following information pertains to the standard costs and actual activity for Tyler Company for September: Standard cost per unit Direct materials 4 units of material A $2.00 per unit 1 unit of material B x $3.00 per unit 3 hours x $8.00 per hour Direct labor Activity for September Materials purchased Material A Material B Materials used Material A 4,100 units x $2.05 per unit 1,000 units x $3.10 per unit Material B 3,750 units 905 units 2,690 hours $8.10 per hour 900 units Direct labor used Production output There were no beginning direct materials inventories. (a) Determine the materials price and quantity variances. Material A Materials price variance $ x U Materials quantity variance Oxu $ Material B 0x U OXU (b) Determine the labor rate and efficiency variances. Labor rate variance $ 0x U Labor efficiency variance OXF