After evaluating Zero Company's manufacturing process, management decides to establish standards of 3.7 hours of direct labor per unit of product and $12 per hour for the labor rate. During October, the company uses 18,600 hours of direct labor at a $227,850 total cost to produce 4,500 units of product. In November, the company uses 28,800 hours of direct labor at a $384,768 total cost to produce 6,600 units of product.
Compute the rate variance, the efficiency variance, and the total direct labor cost variance for each of these two months.