I've done SEO and web design for a while now. I've sold web design locally but never got into selling my SEO knowledge or services. This being said, a client of mine who runs a $250k / year business selling a specific product online recently came to me looking to expand. I already did a consultation as well as looked at competition and there's quite a bit that can be done. My questions is, what's the going rate for this sort of stuff? I have absolutely no clue, and that's definitely something I want to have in mind going into our meeting. Any advice will be great, thanks!