ROI Calculator has been a game-changer for me when evaluating investments on the fly. Instead of messing around with spreadsheets or manual calculations, I just punch in my numbers, and it instantly gives me the ROI. It’s especially useful when I’m comparing different opportunities and need a quick way to see what’s actually worth it. One thing I really appreciate is how it lets me adjust the time frame. I’ve used it to break down returns over different periods, which has helped me make better decisions without second-guessing. If you need a fast, no-nonsense way to track your gains, this extension is a lifesaver.