Kretlow Corporation has provided the following data from its activity-based costing accounting system: Activity Cost Pool Designing products Setting up batches Assembling products Total Cost $ 704,662 $ 15,185 $ 131,833 Total Activity 5,601 product design hours 1,025 batch set-ups 10,012 assembly hours Required: Compute the activity rates for each of the three cost pools. Designing products Setting up batches Assembling products per product design hour per batch set-up per assembly hour