RPI Calculator

Retail Price Index, abbreviated as RPI is the measure of the inflation that is published monthly by the Office of National Statistics. It is the percentage change in the price of the sample products of the retail goods and services. RPI was once, the principal official measurement of inflation. At present, Consumer Prices Index (CPI) is used to measure the inflation rate. Make use of this online RPI calculator to measure the inflation rate (percentage change) in the cost of the sample goods or services.

Retail Price Index Inflation Rate Calculation

%

Retail Price Index, abbreviated as RPI is the measure of the inflation that is published monthly by the Office of National Statistics. It is the percentage change in the price of the sample products of the retail goods and services. RPI was once, the principal official measurement of inflation. At present, Consumer Prices Index (CPI) is used to measure the inflation rate. Make use of this online RPI calculator to measure the inflation rate (percentage change) in the cost of the sample goods or services.

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Formula:

Inflation Rate = ((RPI of End Time - RPI of Start Time) / RPI of Start Time x 100)

Example

The percentage change for an initial and final retail price index value of 10000 and 18000 is
Inflation Rate = ((18000 - 10000 ) / 18000 ) x 100
Inflation Rate = 80 %


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