Answer:
99.035%
Explanation:
Data provided in the question:
CPI in 1979 = 72.6
CPI in 1993 = 144.5
Now,
The percentage by which prices rise during the period 1979-1999 will be calculated as :
= [ (CPI in 1993 - CPI in 1979 ) ÷ CPI in 1979 ] × 100%
or
= [ (144.5 - 72.6 ) ÷ 72.6 ] × 100%
or
= [ 71.9 ÷ 72.6 ] × 100%
or
= 99.035%
The percentage by which prices rise during the period 1979-1999 is 99.035%
