I definitely don't give that out to other skinners
You need to price your work by a number of factors:
1) How good you are. We're probably the best interface studio out there except for companies like Frog Design. So we can charge a higher rate. We have a strong portfolio which backs up our higher rate fees. If your portfolio is weaker than you'd like it to be then you need to charge less until you can build up a great looking portfolio. We didn't start out by charging what we charge now - we worked up to it.
2) Who you've worked for - the bigger the clients the more you can demand rate-wise.
3) What your client is able/willing to pay. We have a standard rate for hourly work and will only lower on a rare occasion. I've turned down plenty of clients because they wanted what i consider unreasonable fees. Why would i lock myself into a job that will take 4 weeks for half price only to lose a higher paying project? I wouldn't. So i don't. But TSF can do it as we're in demand. When you first start out you can't "cherry pick."
4) What your time is worth for doing it. Remember you could be out doing other things with your significant other, watching a movie. So what is it worth to you not to do those other things?