The CPI or the consumer price index is the measurement of the average change in prices paid by consumer goods and services. This process is measured over time, over various geographic areas, and a variety of items such as utilities, gasoline, and food. There are three CPI terms, including CPI-U, CPI-W, and C-CPI-U.
These three measures the average change in prices paid by consumers, and specific categories are figured over two years and some monthly. Also, some are figured for specific geographic regions, and some are calculated nationally. Inflation is a term that is used when we have a general increase in prices of goods and services and a decrease in the purchasing value of money. If inflation is low and stable, it can be consistent with economic growth; however, if inflation goes up unexpectedly, it is terrible for the economy. High prices and no funds to make purchases play havoc with business and decreases consumer purchasing power.