Average Margin Per User - AMPU

A measure of profitability used primarily by companies with subscriber-based business models; mathematically, it is some variant of profit (revenue - expenses) divided by the number of subscribers.

Luke opens a business, training children in the ways of the Jedi order. He has 10 students and charges each $100 for tuition. Luke provides each student with a robe ($10 each) and light saber ($50 each), while his dad gives him a good deal on rent, only charging him $80 to use the basement of the Death Star as a studio. With total revenue of $1,000 and costs of $680, this yields an AMPU of $32.