For female, a regular haircut costs around 20KM in the center. If you want more done to your head, then expect to reach deeper into your pocket. It is cheaper at salons further away from the center. You migh be able to cut hair for less than 10KM if you ask the locals for tips.

It is even cheaper if you let trainees practice their skills on your head. I will ask my friend for the salon and will update promptly.