Most salesmen don't have a clue what the store owns a car for, let alone the profit in the deal. Most stores pack the trade number with a profit number that doesn't get touched no matter what, and that's before any sort of reconditioning. Sometimes that's just an oil change and a detail, sometimes you spend 4K on it.
The idea at most stores is to keep the salesmen in the dark, and feed them whats necessary to close a deal and get you moving along to the next step
Since I do it for myself, I can answer most questions.