- CPI measures price changes paid by ultimate consumers in retail markets.
- WPI measures price changes in wholesale markets, where goods are traded in bulk.
- CPI includes inflation in services, while WPI does not.
- CPI focuses on a basket of goods consumed by retail people.
- WPI tracks prices the producer gets at factory gate/mandi levels.
- WPI includes prices of goods only, not services.
- CPI includes the impact of indirect taxes.
| Feature | Consumer Price Index (CPI) | Wholesale Price Index (WPI) |
|---|---|---|
| Measures | Change in prices paid by ultimate consumers in retail market | Change in prices in the wholesale market |
| Includes Services | Yes | No |
| Published By | National Statistical Office (NSO) | Office of Economic Advisor, DPIIT |
| Base Year | 2011-12 | 2011-12 |
| Weight of Food | 45.86% (combined) | 24.4% |
| Includes Indirect Taxes | Yes | No (tracks basic prices devoid of taxes) |