The wholesale price index is part of a comprehensive price index system that includes the producer price index, the import price index and the consumer price index and reflects price trends at the various stages of the economic process. The task of the wholesale price index (WPI) is to monitor the development of prices of goods sold by wholesalers. The survey area includes ÖCPA 2015 section 45 and 46 as far as referring to the wholesale trade. The price survey contains of 395 goods resulting from 550 wholesale companies, which currently report about 3 100 wholesale selling prices (excluding VAT) per month. The wholesale price index is used for a large number of commercial contracts and valorisations by public authorities as well as domestic and foreign companies.