Hi,
If client asking for something rushed, needs day of, very inconvenient time for me, how much is normal to charge for rush fee? $25? $50?
You can charge 150% of the project fee. For example if you are charging $100 for the project, a rush job would be $150.
Or just charge enough to make it worth your while. If you really don’t have time to do the job and it is very inconvenient, you can charge whatever you think would make it worth your time and if the client decided it is too much you don’t really have anything to lose since you don’t really want to do the job anyway 