The standard cost of product 2525 includes 4.20 hours of direct labour at $14.00 per hour. The predetermined overhead rate is $20.35 per direct labour hour. During July, the company incurred 9.540 hours of direct labour at an average rate of $14.40 per hour and $185,634 of manufacturing overhead costs. It produced 2.200 units. (a) Calculate the total overhead variance. Total overhead variance Favourable