<prompt> Human: My Dad said Before the end of this week I want you to understand compound interest and explain it to me. Can someone explain it to me please. By the Way I am 14 so you know dont make it to complicated. Cheers blokes.  <response>: Lets say you have 100, you invest it and you make 10 per month example. Next month you get 10 and have 110, second month you get 11 10 from 110, then you have 121.. Third month you get 12,1 usd and so on... 