What is Wholesale Price Index (WPI) ?

Defination:

The Wholesale Price Index (WPI) is the index used to measure the changes in the average price level of goods traded in wholesale market.
Although some countries still use the WPIs as a measure of inflation, many countries, including the United States, use the producer price index (PPI) instead.
The wholesale price indexes used in Indonesia were originally set up in 1996.
The base year was reset in April of 2006 with a WPI value of 2000.
Index values in Indonesia are commonly expressed as 2000 =100.
The Indian Wholesale Price Index (WPI) was first published in 1902, and was used by policy makers until it was replaced by the Producer Price Index (PPI) in 1978.
A total of 435 commodity prices make up the index.
It is available on a weekly basis.
It is generally taken as an indicator of the inflation rate in the Indian economy.
As an example, the Indonesian Agriculture WPI in February of 2008 was 5140, but was expressed in the recent tables released by Statistics Indonesia as 257 (calculated as 5140/[2000/100]=257).