Question for anyone that does IT/networking on the side….

Hi everyone,

I have been asked by someone who I am acquainted with to network their small business. Although I don’t have the particulars, it looks to be somewhat simple: client/server based with about 5 (or so) clients w/local authentication and the server will act as a file/print server.

I have always ran into a dilemma with doing this kind of thing. The networking itself is not the problem, but I never know exactly how much to charge for the labor. I want to be fair with the price; both to the customer as well as myself.

Has anybody else had this problem?
-or-
Does anybody have a formula/equation that they use to figure out how much to charge when doing side jobs?

Thank you all!