Smyer Corporation makes a product with the following standard costs:

	Standard Quantity or Hours		Standard Price or Rate				Standard Cost Per Unit
Direct materials	6.5	pounds	$10.00	per pound			$65.00
Direct labor	2.4	hours	$22.00	per hour			$ 52.80
Variable overhead	2.4	hours	$ 7.00	per hour			$ 16.80

The company reported the following results concerning this product in July.

Originally budgeted output	6,300	units
Actual output	6,050	units
Raw materials used in production	41,840	pounds
Actual direct labor-hours	14,530	hours
Purchases of raw materials	44,350	pounds
Actual price of raw materials	$ 10.26	per pound
Actual direct labor rate	$ 24.70	per hour
Actual variable overhead rate	$ 5.90	per hour

The materials price variance is recognized when materials are purchased. Variable overhead is applied on the basis of direct labor-hours. (Round your answer to the nearest whole dollar amount.) Required: a. Compute the materials quantity variance.

b. Compute the materials price variance.

c. Compute the labor efficiency variance.

d. Compute the labor rate variance.

e. Compute the variable overhead efficiency variance.

f. Compute the variable overhead rate variance.

please explain