John invests $4000 compounded yearly in a bank that pays compound interest at a rate of 5% a year. Find the amount that John has in the bank after 3 years. [2m]

If this looks familiar to you, you’re either a secondary school student or a fresh graduate just stepping out into the world. It’s easy to get confused by all the deals and offers from banks and credit card companies. That’s why YouTuber KelvinLearnsInvesting breaks it down without the need for scams or a scientific calculator.