Worchester Pharmacy, part of a large chain of pharmacies, fills a variety of prescriptions for customers. The complexity of prescriptions filled by Worchester varies widely; pharmacists can spend between five minutes and six hours on a prescription order. Traditionally, the pharmacy has allocated its overhead based on the number of prescriptions. The pharmacy chain's controller is exploring whether activity-based costing (ABC) may better allocate the pharmacy overhead costs to pharmacy orders. The controller has gathered the following information: (Click the icon to view the expected usage and costs.) The clerk for Worchester has gathered the following information regarding two recent pharmacy orders: (Click the icon to view the pharmacy order data.) Read the requirements. Requirement 1. What is the traditional overhead rate based on the number of prescriptions? First identify the formula used to compute the traditional overhead rate, then compute the rate. (Round your answer to the nearest cent. Abbreviations used: est. = estimated) Traditional overhead rate