Bankrate on MSN

Rule of 72: What it is and how to use it

Here’s how the Rule of 72 works: Divide 72 by your expected annual interest rate (as a percentage, not a decimal). The answer is roughly the number of years it will take for your money to double. For ...
Investopedia

Leverage Ratio: What It Is, What It Tells You, and How to Calculate

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
NerdWallet

Sales Tax: What It Is, Rates and How to Calculate

Use the sales tax calculator to figure out how much sales tax you’ll potentially owe on a purchase. Many, or all, of the products featured on this page are from our advertising partners who compensate ...
NerdWallet

Debt-to-Income Ratio: How to Calculate Your DTI

Debt-to-income ratio shows how your debt stacks up against your income. Lenders use DTI to assess your ability to repay a loan. Many, or all, of the products featured on this page are from our ...
The Conversation

AI has a hidden water cost − here’s how to calculate yours

Leo S. Lo does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...