whatever you do dont make yourself so cheap that people think your actually not that good, and wont try you! think about it, if you see something expensive you automatically think wow it must be good!
just find a happy medium, get as many price comparisons of salons in your area and go middle to high!! we work hard in our job, lets make sure its worth it!
plus, pricing your treatments that bit higher gives you leeway to do some fantastic offers from time to time.
I do Dermalogica facials and charge £32, it is a top brand that when you are trained properly and do thorough treatments, people are more than willing to pay for!!