Elle Inc. makes two types of handbags: standard and custom. The controller has decided to use a plant-wide overhead rate based on direct labour costs. The president has heard of activity-based costing and wants to see how the results would differ if this system were used. Two activity cost pools were developed: machining and machine set-up. Presented below is information related to the company's operations. Custom Direct labour costs Standard $50,000 500 Machine hours $100,000 1,000 400 Set-up hours 100 Total estimated overhead costs are $285,000. The overhead cost allocated to the machining activity cost pool is $171,000, and $114,000 is allocated to the machine set-up activity cost pool. (a) Calculate the overhead rate using the traditional (plant-wide) approach. Predetermined overhead rate % of direct labour cost