Nina Inc. has identified the activities that drive their overhead costs and has assigned costs as follows: Activities, Costs and Drivers Activity Overhead Cost Driver Driver Quantity Changeover $500,000 Number of Batches 800 Machining $279,000 Machine Hours 6,000 Welding $180,300 Welding Hours 3,000 Providing space $32,000 Number of Units 5,000 Nina makes two products, Model 5150 and Model 1492. Below are the number of drivers expected to be used to make each product in the current period. Activity Driver Usage by Product Activity Driver Model 5150 Model 1492 Units 2,000 3,000 Batches 300 500 Machine Hours 3,500 2,500 Welding Hours 1,000 2,000 What is Nina's Cost per driver for Machining