Scrambling jets is fast, loud, and expensive. This piece shows the math behind a scramble: fighter hours set the floor, ...

The SUMIFS function works in a similar way with text as with numbers, but there are two key differences. First, text in Excel ...

The figures are formatted in USD by default, but it’s easy to switch. Just select the cells (hold the Ctrl key to grab multiple at once) and expand the Number group on the Home tab. From there, choose ...

Bluebeam is a PDF markup and collaboration platform built for the architecture, engineering, and construction crowd, with ...

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Yarilet Perez is an experienced multimedia ...

Calculating age based on a birthday is a common task, whether for work, school, or personal records. Excel makes this easy with built-in formulas that can quickly determine a person’s age from their ...

When it comes to calculating interest rates for investments and bonds, the Yield and IRR formulas in Excel can quickly become your friends. Whether you're considering buying a bond or investing in a ...

In this post, we will show you how to calculate the expiry date in Microsoft Excel. Calculating expiry dates is a common requirement when working with Excel, especially for tracking inventory, ...

Social Security's 2026 Cost-of-Living Adjustment (COLA) Predictions Are Ticking Upward. Here's Why That's Not a Good Thing. To calculate the average percentage difference over time, you'll need to ...

IRR calculates a project's average expected return by setting NPV to zero. Excel's XIRR function can compute project IRRs to help select profitable options. IRR overlooks cash flow accuracy and other ...