I assume you are asking a serious question, but yes, you need to at least grow to match the rate of inflation/cost of living. Aside from that, it's up to you to decide how much you want to grow.

Really depends upon the goal. If you're a venture funded startup then the find is aiming for a 10x truth from you over 7-10 years. This will translate to 2-3x Y/Y growth for the first years of the startup. Ofcourse, if you're self funded, these rules don't apply.