How much does it cost to change the spelling of a minors name?

I live in chicago,illinois and i was wondering how much does it cost to change the spelling of my name beause all my parents want to do is change the spelling of my name and im a minor.How much does it cost to change the spelling of a minors name?You know, I don't know the exact amount, but I mean how much are you looking at... it should only be about between $10-40, which isn't too bad if you're considering changing your name a little, because I was recently in almost the same situation when we realized that my middle name was not on my birth certificate, (since it wasn't on my license) and my dad went in to ask and, you have to fill out a couple forms and the fee was about $22 or something like that. I think you should go in and ask, though let me add, to change anything on your birth certificate.......after the forms, takes up to 9 MONTHS. So, get in there, get those forms, fill them out, and pay whatever fee needed! Though i live in another state so..... just go in and ask I guess.How much does it cost to change the spelling of a minors name?it doesnt cost anything, just like a 15 dollar fee. and then to get a new birth certificate is like 17 and a new Social Security card i dont know how much they are.