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.
All of my quotes are built using a spreadsheet that adds up component pieces so they can be sliced and diced however the customer wants. We always start by quoting the total for the whole job and then we can open it up if they want more detail.
The details are made up, but they are in there.