When you own a business, you need to understand how much money you make compared to how much you spend. That means you need to grasp profit margins. But while it’s crucial to know how to calculate ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Vikki Velasquez is a researcher and writer ...

Reporting taxes, applying for a loan and making a new company budget will require you to know how much money you bring in each year. Annual income is one of the most valuable metrics for quick, ...

For companies that sell more than one product, it is helpful to calculate how much each individual product contributes to the overall company's sales and profits. To do that, we calculate the margin ...

Michelle Lambright Black, Founder of CreditWriter.com and HerCreditMatters.com, is a leading credit expert and personal finance writer with nearly two decades of experience in the credit industry. She ...

How do you calculate your investing returns? And how does that number compare to the professionals or to the S&P 500 or your investment advisor? The answer might seem simple: (Ending of year value) / ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Lea Uradu, J.D., is a Maryland state registered tax preparer, state-certified notary public, ...