I have an appliance repair business. I charge for labor and parts. I mark up my parts a flat percentage. How do I respond when a customer wants me to breakdown the cost of labor vs parts? Because I know what they are really trying to do is see if they can find the part cheaper on the internet.
Part of the markup is identifying the correct part - the 1st time! I think it’s ok to say that
I will pay for that service. If I knew how to do something I wouldn’t call someone else to screw around with it.