1. Grawburg Inc. maintains a call center to take orders, answer questions, and handle complaints. The costs of the call center for a number of recent months are listed below: April May June July August September October November Calls Taken Call Center Cost 7560 $ 81,960 7529 $ 81,773 7570 7568 7535 7549 7592 7579 SSSSSS 82,025 81,997 81,816 81,895 82,156 82,092 Management believes that the cost of the call center is a mixed cost that depends on the number of calls taken. Calculate the following using the high-low method: Variable Cost per unit produced (round to 2 decimal place) Overall Fixed Cost portion of Inspection Costs (round to 2 decimal place) Cost equation for Inspection Costs (in the linear equation format) Estimated Inspection costs when 973 units are produced (round to nearest whole dollar)