Direct materials: 7 microns per toy at $0.32 per micron
Direct labor: 1.2 hours per toy at $6.80 per hour
During July, the company produced 4,600 Maze toys. Production data for the month on the toy follow:
Direct materials: 70,000 microns were purchased at a cost of $0.31 per micron. 29,750 of these microns were still in inventory at the end of the month.
Direct labor: 6,020 direct labor-hours were worked at a cost of $43,344.
What is the material quantity variance, labor rate variance, and labor efficiency variance?