Monitoring sales revenue allows you to track your business' profit, but equally important is understanding where those revenues are derived. If you sell multiply products, or categories of products, ...

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 ...

Multiple factors affect the calculation of withholding by the percentage method, including an employee's marital status and the number of withholding exemptions the employee noted on his W-4 form.

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 ...

Excel percentage formulas can get you through problems large and small every day—from determining sales tax (and tips) to calculating increases and decreases. We’ll walk through several examples below ...

I was recently looking for a simple percentage calculator for iPhone and I came across OffOf, an app developed by Daeo Corp. and available for free on the App Store. As the name suggests, OffOf lets ...

Scientific American presents Math Dude by Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies. Long time math fans may remember our first foray into the world ...