To calculate the marginal tax rate on the investment, you'll need to figure out the additional tax on the new income. In this example, $500 will be taxed at 15% and $500 at 25%.

Percentage change is a simple calculation used for many purposes in finance and business, such as to judge the relative performance of a stock or other investment.

The cumulative volume index, or CVI, is a momentum indicator that gauges the movement of funds into and out of the entire stock market.

To calculate the marginal tax rate on the investment, you'll need to figure out the additional tax on the new income. In this example, $500 will be taxed at 15% and $500 at 25%.

Learn to calculate how volatile a stock or entire portfolio may be, over different time intervals.

UK inflation crept up in July hitting 3.8%, partly driven by soaring airfares. Did your personal inflation rate rise by more ...