Pricing bids to builders as a sub

Hey everyone, my company is new. I run a carpentry business in SE Mi focused on doing high end work when I can get it. I'm having several struggles and dilemmas but, what I'm wondering is do people who work as subs markup material when they give their price to the builder? I know people do this when they work directly with the homeowner, so I'm wondering should my pricing change in any way when going through a builder? I also have been charging an additional percentage at the end of my bid when I have labor and materials calculated in order to make a profit for the company