The standard cost of product 2525 includes 2.30 hours of direct labour at $13.60 per hour. The predetermined overhead rate is $22.20 per direct labour hour. During July, the company incurred 4.210 hours of direct labour at an average rate of $13.90 per hour and $83,802 of manufacturing overhead costs. It produced 1,700 units. (a) Calculate the total, price, and quantity variances for labour. $ Total labour variance $ Labour price variance Labour quantity variance $