When you borrow money, you’ll also pay interest on top of the amount you borrowed.. Interest is the money the lender gets for loaning you the money. Read Next: 5 Subtly Genius Moves All Wealthy People ...

Learn the basics of Simple and Compound Interest with easy formulas, examples, and clear differences to help you score better in exams and understand financial growth.

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Return on investment (ROI) measures the amount of ...

Rajeev Dhir is a writer with 10+ years of experience as a journalist with a background in broadcast, print, and digital newsrooms. Phimwilai Kitsuriya / Getty Images Return on investment (ROI) ...