How do your rates compare to an FBO?

Comparing Phoenix Flyer’s Archer to an FBO that charges $128 based on Hobbs time, and 1 hour of Tach Time averaging 0.8 hours of Hobbs Time:

1. Converting FBO rate to Tach Time: $128/0.8 = $160.00 per Tach Hour
2. Adding %8 sales tax: $160.00 * 1.08 = $172.80 per Tach Hour

We are $172.80 - $110 = $62.80 less per hour. But because of monthly dues you only realize a benefit if you fly more than two hours per month.