The following is from the book of CNN Incorporated for the month of February 2007.

A. Production during the month (Boxes of Cereal)	20,000
B. Standard variable costs per box:
Direct materials 2 pounds @ $5 per pound	$10
Direct labor .20 hour	$2.50
Variable factory overhead .20 hour	$1
C. Fixed factory overhead cost:
Monthly budget for 16,000 boxes or 3,200 hours	$80,000
D. Actual production costs:
Direct materials purchased 80,000 pounds at $6	$480,000
Direct materials used 44,000 pounds at $6	$264,000
Direct labor 2,400 hours at $11.50	$27,600
Factory overhead (50% variable / 50% fixed)	$120,000

Compute the following with the corresponding solutions: A. Materials Variance B. Labor Variance C. Overhead Variance D. Total Manufacturing Variance