Have you ever stared at a spreadsheet, struggling to make sense of percentage calculations that just don’t seem to add up? Whether it’s a confusing formula, a misstep with zero values, or an ...

Excel's PERCENTOF function returns the percentage that a subset of data contributes to a whole dataset, saving you from having to create additional or complex formulas to generate the same outcome.

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 ...

Discover how Excel's Goal Seek reverses calculations to find input values from known outcomes and enhances your data analysis skills.

Have you ever trusted a tool to simplify your work, only to discover it might be quietly leading you astray? That’s exactly the risk you run with Excel’s “Percent Of” function. On the surface, it ...

Q. I have prepared projections for a proposed project, and I want to calculate the internal rate of return. Instead of using Excel’s IRR function, should I use simple math formulas so others can ...