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 ...

If you are using Microsoft Excel to manage numerical data, at some point you're inevitably going to display percentages. Doing so can give you a new insight, or make summarizing heaps of data a bit ...

Understanding sales percentages is a key element in increasing profits. One important part of sales analysis is knowing what percentage of your revenue comes from existing clients and what portion ...

Annual percentage yield (APY) is the effective annual rate of return on an investment. Learn how it accounts for compounding interest and how it differs from APR.

Microsoft Excel doesn't inherently possess a percentage function, but a simple formula can calculate the required figure for your business. However, Excel cannot recognize a percentage formula, which ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...