What is this so-called "Compound Interest", is that when you make an investment, you invest in the long term and do not withdraw a short term interest generated, but it is reinvested, it is to convert interests to the initial capital , in a few words reinvest interest on interest.
For this it is necessary that in the first place, change your employee mentality and invest in an investor, do not think in the short term and think about the long-term investment, the formula with which this is calculated:

So great is this interest that Albert Einstein said:

Interest is the most powerful force in the galaxy.