High-Low Method Sophia operates a full service day spa in a small college town. Recently, Sophia rented space next to her spa and opened a spray tanning salon. She anticipated that the costs for the spray tanning service would primarily be fixed, but found that tanning salon costs increased with the number of appointments. Costs for this service over the past 8 months are as follows: Tanning Month Total Cost Appointments January 600 $1,744 February 2,000 $2,120 March 3,300 $2,770 April 2,500 $2,400 < May 1,600 $1,700 June 2,300 $2,295 July 2,140 $2,100 August 3,100 $2,610 Required: 1. Which month represents the high point? The low point? High point Low point In your calculations, round per unit costs to the nearest cent. 2. Using the high-low method, compute the variable rate for tanning. Next, compute the fixed cost per month. Round the variable rate per tanning appointment to the nearest cent and use it in your further calculations. Round the fixed cost per month to the nearest dollar and use it in your further calculations. Variable rate for tanning $ per tanning appointment Fixed cost per month $ ?