One of the formulas supported by Microsoft Excel is the sum of squares equation. To calculate the sum of squares using Microsoft Excel, you need to input a specific formula into the formula bar of the ...

Ariel Courage is an experienced editor, researcher, and former fact-checker. She has performed editing and fact-checking work for several leading finance publications, including The Motley Fool and ...

Before businesses were lucky enough to be able to create sales forecasts in Excel, business owners had to enter numbers on columnar pads and add the figures with a calculator. If a single number ...

In your school life, you have learned about average and the method to calculate it. The formula to calculate the average is very simple. You just have to add all the values in the given data and ...

This post explains how to calculate Weighted Average in Excel with percentages. In a standard arithmetic average where the sum of values is divided by the number of values, each data value is treated ...

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 ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Charlene Rhinehart is a CPA , CFE, chair of ...

Learn how to unlock Excel’s hidden features with GROUPBY and create visually compelling, accurate reports like never before.

Finding the exact difference between two dates in Excel may not be the most used feature, but it can be a lot of fun. A classic example is working out someone’s age. It’s not as complicated as it ...

Have you ever found yourself wrestling with Excel formulas, trying to calculate moving averages or rolling totals, only to end up frustrated by the constant need for manual adjustments? You’re not ...

Too many financial decisions are made without factoring in the time value of money. Whether providing financial planning advice related to a client’s retirement, advising a client about a business ...

Q. In your November Tech Q&A article on Excel’s Scenario Manager, you mentioned two other “what-if” tools: Goal Seek and Data Table. Can you show how those work like you did with Scenario Manager?