The standard cost of product 5252 includes 1.9 hours of direct labor at $14.00 per hour. The predetermined overhead rate is $22.00 per direct labor hour. During July, the company incurred 3,840 hours of direct labor at an average rate of $14.30 per hour and $77,840 of manufacturing overhead costs. It produced 1,920 units. (a) Compute the total price and quantity variances for labor. Total labor variance $ Labor price variance $ Labor quantity variance $ (b) Compute the total overhead variance, Total overhead variance $