The inflation rate from 2008 to 2009 is 9.93%.
Price index is a measure of the aggregate price level in an economy. Changes in the price index measures the inflation or deflation in that economy. Inflation is when there is a persistent rise in the general price levels. When there is inflation, the price index increases from one year to the next.
Producer price index is a type of price index that aggregates the prices of the goods and services produced. The consumer price index is an aggerate of the price of a basket of good consumed. It is used to measure inflation.
Inflation : [(price index in 2009 / price index in the base year) - 1] x 100
[(181.6 / 165.2) - 1] x 100 = 9.93%
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