Exercise 17-9 Air United, Inc. manufactures two products: missile range instruments and space pressure gauges. During Apri, 54 range instruments and 300 pressure gauges were produced, and overhead costs of $83,515 were estimated. An analysis of estimated overhead costs reveals the following activities. Activities Cost Drivers Total Cost 1. Materials handling 2. Machine setups 3. Quality inspections Number of requisitions Number of setups Number of inspections $31,465 27,810 24,240 $83,515 The cost driver volume for each product was as follows Cost Drivers Instruments Gauges Total Number of requisitions Number of setups Number of inspections 375 180 250 640 1,015 335 255 515 505 Determine the overhead rate for each activity. Overhead Rate Materials handling s Machine setups Quality inspections s