This only accounts for licensing take and revenue. You also have to factor in additional R&D costs.Mathematically speaking if Nintendo had to pay Sony / MS / Steam even 30 % of the sales....then the game would have to sell 30 % more to compensate.
So the question is, would Mk8 sell 30 % more being on other platforms.
Its not going to happen I agree, but commercially its easy numbers. No I am not port begging, don't give a damn about MK series, preferred excite truck.