Final utility

Final Utility is the utility of a good when applied to our least desirable use of it. It is the estimated utility of the last use of a supply, i.e., the least important use of that supply. For example, if a use of a good must be given up, it will logically be the last use of the good we would choose. This is because we give up the least important of our satisfactions first—which would be the uses satisfied by the last good since we satisfy our more important needs first.