What's a good hourly rate to charge for making textual changes to a website? What about design changes?

I've done work for the same person for years and am probably WAY undercharging, but I no longer know since I don't know other contractors.What's a good hourly rate to charge for making textual changes to a website? What about design changes?What is your time worth to you? Going rates depend on how extensive the editing is. If its text content only, I would charge min $25 per hour even for a friend, thats pretty low, if its more like picture edits and any programming or hand coding I'd start at $45 hr. You can bid by the project or month too knowing how long it will take you.
What's a good hourly rate to charge for making textual changes to a website? What about design changes?
Professionals don't make text changes. They setup the site with a server side scripting program like php or asp so that the clients can make the changes.

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