Producer Price Index measures fluctuation of prices for some services and all goods produced in Korea thatare traded between businesses in the first transaction stage in the domestic market. The PPI is used to grasp the supply-demand conjuncture, to judge business trends and to deflate nominal terms. The source has changed the base year from 2005=100 to 2010=100 as of Jan 2013. YoY% change for South Korea producer price index. Please refer to KOPPI Index DES<go> for details.