How To Calculate Inflation Rates The two most frequently cited indexes that calculate the inflation rate in the U.S. are the Consumer Price Index (CPI) and the Personal Consumption Expenditures ...

To calculate a price-weighted average, or any arithmetic average for that matter, add the numbers (stock prices) together and divide by the number of stocks in the average.

The purchasing managers’ index (also known as the ISM manufacturing index) is a major monthly economic indicator that focuses on the performance of the manufacturing sector.