95% of our customers pay for an "end product" of a vehicle wrap, it is one total price for a completed project.
For most projects/customers this is acceptable.
For the other 5% of our customers a breakdown of our materials separately from our labor rate is required. As one is taxed And the other is not and they're trying to save wherever possible.
Your pricing you came up with in your quote should have been based off of:
#1: how much SF vinyl was needed for the wrap production/printing/lamination (including waste)
#2: the estimated labor to design the wrap
#3: the estimated labor to install the wrap
All three of these can (should be) able to be purchased separately at your shop for set rates? Unless you only sell "complete wraps".
#1 could be purchased separately as if the customer came in with print-ready artwork to have decals printed
#2 could be purchased separately if the customer only wanted art/logo design
#3 could be purchased separately if the customer had a wrap already printed elsewhere and needed install only at their local location
After the project is completed you should be taking your "actual job facts" or project worksheets or software or whatever you use for each project and comparing these to what you estimated/quoted to see your profit/loss for each project and how to improve this or how to adjust your pricing on the next job. We have software that tracks our projects materials costs, design time, install time (and many more aspects) for each job and you can see where you compared to your estimates.