The PCE price index (PCEPI) (or PCE deflator, PCE price deflator, Implicit Price Deflator for Personal Consumption Expenditures (IPD for PCE) (by the Bureau of Economic Analysis) or the chain-type price index for personal consumption expenditures (CTPIPCE) (by the FOMC)) is a nation-wide indicator of the average increase in prices for all domestic personal consumption. It's indexed to a base of 100 in 1992. It's derived from the largest Gross Domestic Product component, personal consumption expenditures. The other components are government consumption expenditures, gross private domestic investment, and net exports of goods and services, the GDP can be found in the BEA's national income and product accounts.
The less volatile measure of the PCE price index is the core PCE price index which excludes the more volatile and seasonal food and energy prices.