No because I can’t take your example seriously.
I don’t know (nor care tbh) which ram 1500 you are looking at, but TrueCar says (for me)
So here on Earth you negotiate 45,235 down to/below 42,403 (not 30% off) THEN you deduct the incentives.
You don’t just ask for the number without knowing the incentives or the dealer will start at msrp minus incentives. Plenty of “deals” posted here have been: MSRP - incentives with 0 discount.
Once you are negotiating discount with incentives together it just gets conflated.