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.
Parts - $xx.xx
Labor - $xx.xx
Nothing says you have to give the part number. Why not give an internal part number unique to you?
Exactly. You could even add “Diagnostic Fee”, “Travel”, and “Supplies” to it if you wanted to make it look like more of a breakdown.