according to my redneck math, commonly used here in ky, we are being charged 65 dollars for the event, and $3.90 taxes...a tax rate of 6%. is this a sales tax? usage tax? service provided tax?

my next question is this. if wv is now charging a tax of some sort, are the other states that host ibo events not charging the tax out of lack of knowledge by those states of the event, or is wv just getting one over on the shooters.