You Would Rather Be... Full Size Version Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Test Your Investment Knowledge! How much do you know about investing? Take our quiz and find out instantly. First Name Last Name Email Address Thank you! Oops! Related Contents The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out. Inflation & Your Money It's important to understand how inflation is reported and how it can affect investments. How Compound Interest Works Use this calculator to better see the potential impact of compound interest on an asset.