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.
If it were me, I’d give them the breakdown to satisfy them, but have a policy that, for liability reasons, I don’t install parts supplied by a third party.