Enter the cost of the market basket in the current period and the cost at a base period to calculate the inflation of the CPI.

## Consumer Price Index Formula

The following formula is used to calculate the inflation of CPI over time.

CPI = Ct / C0 * 100

- Where CPI is the consumer price index
- Ct is the cost of market basket in current period
- C0 is the cost of market basket in base period

## FAQ

**What is consumer price index?**

This is an index that measures the changes in prices of a selection of consumer goods over time.

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