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 4,000 hours of direct labor at an average rate of $14.30 per hour and $81,300 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. Please include all steps and formulas. Also, make sure to clarify everything.