Profit

From Memory Alpha, the free Star Trek reference.

You may also be looking for the religious term prophet or the Deep Space 9 episodes Profit and Loss and Profit and Lace.

Profit is the gain from a sale minus what is invested to make that sale, usually in terms of currency.

Harry Mudd once visited the planet Omega Cygni, where he made a large profit by selling the natives their own oceans. (TAS: "Mudd's Passion")

Profit is also widely known to be one of the driving forces behind what most capitalistic Ferengi do, and a major aspect of their religion. (DS9: "Body Parts")