My wife has had a hair salon for the past 20 years. In the 8 years I have known her she charges the same for thais as farang. In the last 7 years her landlord has raised rent 500 baht every year. But her prices haven't. Until this year. The land lord raised the rent 2,500 baht. I explained to my wife she must pass the increasing expenses on to the customers for her to make a profit. She has a very busy shop. But is making less money today than she did 7 years ago because she hasn't adjusted her prices to the increasing rent , electric and product cost. 200 baht for a men's cut isn't over charging in my opinion. Many of the shops around us are. She deserves to make a decent living.