When people ask me this I tell; them I don’t have one.
What you really want to know is how much your job will cost to do/fix.
I once hired an electrician who had the cheapest hourly rate in Mosman. Guess what? He was also the slowest in Mosman … and not very good either. I spent the whole time looking at my watch.
It's far better to get me (or any tradie) to quote upfront in writing. That way you know exactly what the job will cost and you can say yes or no, then relax.
I've been drawing and painting since I was a kid. I've studied art and design and have worked in visual areas my whole life. Now I'm a house painter!