Wang Company has established the following overhead cost pools and cost drivers for the month of May Cost Pool Purchase orders Machine setups Electricity Overhead Casts $ 17,430 46,080 30,000 Cost Driver Levels 30 orders 100 setups 30,000 kilowatt hours The following information pertains to the actual consumption of activity resources for two sample jobs completed during May Number of units produced Number of purchase orders Number of setups trumber of kilowatt hours Job Mi 600 10 25 600 Job M2 1,200 5 5 1,200 What is the activity-based overhead rate per purchase order? Multiple Choice O $591 O $581 O $571 O $630 $600