🇺🇸 Today Forex Market News 👉🏻 What Is the Consumer Price Index (CPI)? The Consumer Price Index (CPI) measures the monthly change in prices paid by U.S. consumers. The Bureau of Labor Statistics (BLS) calculates the CPI as a weighted average of prices for a basket of goods and services representative of aggregate U.S. consumer spending.1 The CPI is one of the most popular measures of inflation and deflation. The CPI report uses a different survey methodology, price samples, and index