E5-5 Estimating Cost Behavior Using High-Low Method [L53] Mountain Dental Services is a specialized dental practice whose only service is filling cavities. Mountain has recorded the following for the past nine months of Cavities Total Cost Filled 400 500 675 525 700 Number Month $5,250 5,850 6,500 February March April May July August September 600 300 450 5,900 5,800 5,750 5,400 5,250 Required: 1. Use the high-low method to estlmate total fixed cost and variable cost per cavity filled. (Round your answers to 2 decimal places.) Fixed Cost Variable Cost per 2. Using these estimates, calculate Mountain's total cost for filling 800 cavities. d Tolal Cost