LightBurn does not have any such capabilities. I created a spreadsheet with my costs for wood, acrylic, etc. that I can input the size of it I’m using, my markup that I want, as well as my cut time, assembly time, etc and it spits out a suggested price.
In my experience there is quite a bit of waste material produced on most of the jobs I do. I’m just a hobbyist but have several cardboard boxes of scraps that aren’t small enough to toss in the trash, but aren’t the right shape for the current project.
I’m mostly a hobbyist, but have done paid jobs before. When I do, I bill for the number of full size sheets I expect to use, including a spare sheet or two in case of user errors.