Javonte co. set standards of 3 hours of direct labor per unit of product and $16.20 per hour for the labor rate.

During october, the company uses 20,000 hours of direct labor at a $328,000 total cost to produce 6,800 units of product.
In november, the company uses 24,000 hours of direct labor at a $394,800 total cost to produce 7,200 units of product.

ah = actual hours sh = standard hours ar = actual rate sr = standard rate

(1) compute the direct labor rate variance, the direct labor efficiency variance, and the total direct labor cost variance for each of these two months. classify each variance as favorable or unfavorable.

(2) javonte investigates variances of more than 5% of actual direct labor cost. which direct labor variances will the company investigate further?