The standard cost of product 5252 includes 1.9 hours of direct labor at $15.70 per hour. The predetermined overhead rate is $22 per direct labor hour. During July, the company incurred 4,000 hour s of direct labor at an average rate of $16,00 per hour and $81,500 of manufacturing overhead costs. It produced 2,000 units. (a) Compute the total, price, and quantity variances for labor. (b) Compute the total overhead variance