Originally Posted by
tezzer
Tax is levied as a percentage of the cost of the goods/ service paid for. FACT.
Well, I'd like to see some backing for this assertion of "FACT".
In any case, I'd start by pointing out the FACT that the "taxes, fees and charges" you pay for your ticket include something called the "Air Passenger Duty". If you want to be pedantic, it's not a tax but a duty. And it's still a flat rate.