Could someone please help?

Sherri's 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. Number of Appointments 250 200 Month January February March April May Total Cost $6,100 5,750 6,500 5,100 6,600 6,250 325 150 300 225 June Using the high-low method, calculate the total fixed cost per month and the variable cost per tanning appointment. (Round your "Variable Cost per Unit answer to 2 decimal places and "Fixed Cost" answer to the nearest dollar amount.) Answer is complete but not entirely correct. Variable Cost per Unit Fixed Cost $ $ 8.573 3.815