Lewis Company's standard labor cost of producing one unit of Product DD is 3.9 hours at the rate of $10.0 per hour. During August, 41, 200 hours of labor are incurred at a cost of $10.20 per hour to produce 10, 500 units of Product DD. Compute the total labor variance. Compute the labor price and quantity variances. Labor price variance $ Labor quantity variance $ Compute the labor price and quantity variances, assuming the standard is 4.2 hours of direct labor at $10.40 per hour. Labor price variance $ Labor quantity variance $