Answer:
23.07%
Explanation:
For computing the inflation rate first we have to determine the price index for 2011 which is shown below:
Price index for 2011 is
= (market basket of goods and services cost in year 2011) ÷ (market basket of goods and services cost in year 2009) × 100
= ($160) ÷ ($130) × 100
= 123.07%
Now the inflation rate is
= (Price index for 2011 - price index for 2009) ÷ (price index for 2009) × 100
= (123.07 - 100) ÷ (100) × 100
= 23.07%
And, the price index for 2009 is
= ($130) ÷ ($130) × 100
= 100%
