7:42 PM Thu 2 Dec 34% Done ACCT 2017 Job costing Chesbro Limited (16 of 16) Job costing Chesbro Limited manufactures customized pressure washers. The washers pass through two departments, fabrication and painting. Chesbro uses a normal costing system. Estimated overhead and direct labour hours for the year are as follows: Fabrication Painting Estimated overhead $20,000 $36,250 Estimated direct labour hours 10,000 5,000 Job 416 required $57 of direct materials and $45 of direct labour ( 3 hours in Fabrication and 1 hour in Painting). Required: (1) Compute the predetermined overhead rate, based on direct labour hours, for the plant as a whole. What is the total cost of Job 416 using this rate? (ii) Compute predetermined overhead rates, based on direct labour hours, for each department. What is the total cost of Job 416 using these rates? (iii) Should Chesbro Limited use one plantwide overhead rate or departmental overhead rates