If you track your daily earnings using an Excel spreadsheet, you can use the same spreadsheet to estimate your projected earnings over any time period. Using Excel's "AVERAGE" function, you can ...

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 your business makes investments in equipment and employee benefit contributions, you may need to track the average annual rate of return over a span of time for financial reporting obligations.

Calculating returns from your stock portfolio can be a tricky matter, especially if some of your holdings pay dividends, or you make frequent deposits and withdrawals from your account. With Excel and ...

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 ...

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 ...

Katharine Beer is a writer, editor, and archivist based in New York. She has a broad range of experience in research and writing, having covered subjects as diverse as the history of New York City's ...