Off and on for years I get calls from family and friends with computer
issues. Mostly due to infections. Sometimes the solution involves
detection and cleaning, while other times the infections are too drastic
or the recommended approach is a format re-install of the OS/APPS.

I'm basically asking for a good fee model (or on-line resource) guide to
know that I am not over charging them or that they are not under
compensating me for the hours of work I perform.

How do folks here handle what to charge for on-the-side computer work.