Rardin Corporation makes a product with the following standard costs:

Standard Quantity of Hours Standard Price or Rate

Direct Material 7.4 ounces 8.00 per ounce

Direct Labor 0.3 hours 16.00 per hour

Variable overhead 0.3 hours 7.00 per hour

The company reported the following results concerning this product in July

Actual output 2,200 units

Raw material used in production 16,420 ounces

Purchases of raw materials 17,900 ounces

Actual Direct labor hours: 720 hours

Actual cost of raw material purchases 141,410

Actual direct labor cost: 12,528

Actual variable overhead cost 5,112

The company applies variable overhead on the basis of direct labor hours. The direct materials purchases variances are computed when the material is purchased.

a. Compute the materials quantity variance.

b. compute the materials price variance

c. Compute the labor efficiency variance.

d. Compute the labor rate variance.