Answer:
Explanation:
CPI is consumer price index. It is used to indicate the inflate rate in the economy.
Calculating the CPI is as below
CPI = current basket prices/ base year basket price x 100
In this case.
C) 116.9 and the inflation rate was 9.8%
CPI =90/77 x 100
CPI =1.16883x 100
CPI = 116.883
CPI = 116.9
Inflation for a period is measured by taking into account the difference in price from the previous periods.
Inflation for 2014 will be price difference between 2014 and 2013.
i.e., 90 - 82
As a percentage,
The inflation will be 92-8/ 82 x 100
= 8/82 x 100
=0.0975 x 100
=9.756
=9.8%