Convert a disfluent question to a proper question. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.

What's the utilitarian principle ugh no I mean the marginal utility of wealth per income per person do as that person becomes richer?
What the marginal utility of wealth per income per person do as that person becomes richer?