I am sorry to be evasive but there is no one answer. Every show (from a 30 minute children's show to a full day's entertainment at a festival and everything in between) is tailored to your requirements and priced accordingly.
As a rough guide Uncle Bob's prices start from around £60 for a children's magic show in the Milton Keynes area.
I am confident that my prices are very competitive, and would advise anyone to obtain other prices and compare them. The entertainment content of my show is good value and I have often been told "that was worth it" and "you have certainly earned your money."
Please telephone me (on 01908 315147) to discuss your requirements and I will give you a firm and fair price.