David Kindness is a Certified Public Accountant (CPA) and an expert in the fields of financial accounting, corporate and individual tax planning and preparation, and investing and retirement planning.

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Amy is an ACA and the CEO and founder of ...

Knowing how to use Excel's variables gives you the ability to make your formulas – and by extension the spreadsheets containing those formulas – much easier to understand. For example, the formula ...