You are presenting a business idea for leaf-blower mufflers in Shark Tank and you pitch that your business idea will provide a NPV of $300,000 given an expected return of 18%. Imagine Mark Cuban turns to you and says, "are you saying that I'm only going to make $300,000 on this investment - do you know who I am?"

Please help Mark Cuban correctly understand the meaning of $300,000 NPV given an 18% expected return.