I'm looking to start offering maintenance to my clients whom I have setup sites of computers for. I'm currently thinking of a business with four computers in three different sites.
How much should I charge as an ethical and honest monthly basis for computer maintenance? I realise that in the workforce there are I.T individuals that bump up the price substantially to take advantage of individuals and their understanding of I.T services. (hence looking for ethical & honest basis).
What are some factors to consider in pricing and how should they be valued? I generally charge at an hourly rate so monthly is quite hard to invisage.