Zee Corporation has developed the following cost standards for the production of its leather backpacks:

	Standard Cost Per Backpack
Leather (0.9 yards X $22 per yard)	$19.80
Direct Labor (1.3 hrs X $9.00 per hr)	$11.70
Variable Overhead (1.30hrs X $15.00 per hr)	$19.50

Variable overhead at Zee is applied on the basis of direct labor hours. The actual results for last month were as follows:

Number of backpacks produced	15,000
Direct Labor Hrs Incurred	18,800
Yards of leather purchased	14,500
Yards of leather used in production	14,100
Cost of leather purchased	$306,675
Direct Labor Cost	$159,800
Varaiable Overhead Cost	$285,760

The direct materials purchases varainces is computed when the materials are purchased. Required compute the following variances: a. Materials Price Variance b. Materials Quantity Variance c. Labor Efficiency Variance d. Variable Overhead Rate Variance