The CPI stood at 96.4, 98.6, 101.2, 103.3, 105.7, and 108.9 on the same date in successive

Question:

The CPI stood at 96.4, 98.6, 101.2, 103.3, 105.7, and 108.9 on the same date in successive years.
a. What was the inflation rate:
(i) In the fourth one-year interval?
(ii) In the fifth one-year interval?
b. What amount was required at the end in order to have the same purchasing power as $100 five years earlier?

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