If the cpi is 100 in the base year and 108 in the current year, how much did prices rise between the base year and the current year?

CPI (Consumer Price Index) is a measure of changes in prices paid by consumers for goods and services. It is used to estimate the changes in prices.
Therefore;

Change in prices = (CPI in current year - CPI in base year)/CPI in base year

Substituting for the values given in the current problem
Changes in prices = (108-100)/100 = 8/100 = 0.08 or 8%.

This shows that prices increased by 8% in the current year compared to the base year.

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