Hi,
I am a CELTA qualified teacher, who is about to start running a course of private English classes in the Valencia region of Spain. However, I am unsure about how much to charge students. The course will be about 24 lessons over a period of around 3 and a half months, for children.

Does anyone know what a normal price for such a course in this part of Spain would be?

Any information will be gratefully received.
Thank you very much!