Beginning in 2011, the Affordable Care Act will require health insurance companies to spend a minimum percentage of the premiums they collect on health care services and quality improvement activities ...

Revise how to work out equivalent ratios and simplify ratios by dividing both sides by the highest common factor. Test yourself with practice questions and a game. NEW: Ratio and fractions, and ...

Opinions expressed by Entrepreneur contributors are their own. Being an entrepreneur for more than 30 years has taught me how important it is to track data about my business. But, I didn’t always take ...

A retail business buys finished goods from suppliers and manufacturers and sells them to consumers and businesses. Retailers may also assemble or manufacture products for resale. Financial ratios ...

When an absolute number doesn't adequately describe a scenario, proportions help fill the gap by describing the number with respect to a total. As an example, knowing that 30 orders were for a ...

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 ...