E5-5 Estimating Cost Behavior Using High-Low Method [LO 5-3] Mountain Dental Services is a specialized dental practice whose only service is filling cavities. Mountain has recorded the following for the past nine months: Month January February March April May June July August September Number of Cavities Filled 575 625 700 600 525 Total Cost $6,350 6,250 6,400 6.250 6,150 5,400 5,800 5.000 5,400 375 475 350 400 Required: 1. Use the high-low method to estimate total fixed cost and variable cost per cavity filled. (Round your answers to 2 decimal places.) Fixed Cost Variable Cost per Unit 2. Using these estimates, calculate Mountain's total cost for filling 450 cavities. Estimated Total Cost This is a numeric cell, so please enter numbers only