The Consumer Price Index (CPI) measures the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services.
A combination of goods, in statistically derived proportions, used to track price changes. It is used in such indicators as the Consumer Price Index (CPI), and the Producer Price Index (PPI).
The Wholesale Price Index (WPI) measures and tracks the changes in the price of goods in the wholesale market, or in other words, the price of goods that are sold in bulk, or wholesale, typically to retailers.
