Tan-O-Rama is a local tanning salon. The following information reflects its number of appointments and total costs for the first half of the year: Month Number of Appointments Total Cost January 500 $ 6,800 February 300 5,000 March 275 5,450 April 475 6,050 May 200 5,600 June 250 5,000 Required: Using the high-low method, calculate the total fixed cost per month and the variable cost per tanning appointment