The table shows Net National Income (Lac Crore rupees) and Per Capita Net National Income (thousand rupees) of India, 2015-16 to 2019-20.
| Year | Net National Income | Per Capita NNI |
|---|---|---|
| 2015-16 | 122 | 95 |
| 2016-17 | 136 | 105 |
| 2017-18 | 151 | 115 |
| 2018-19 | 167 | 126 |
| 2019-20 | 177 | 132 |
What is the percentage increase in per capita Net National Income during 5 years (i.e. 2015-16 to 2019-20)?
Per capita Net National Income rose from 95 in 2015-16 to 132 in 2019-20, an absolute gain of 37 thousand rupees.
The percentage increase is (132 - 95)/95 x 100, which is about 38.94%, so the answer is about 38.94%.
The base for the whole-period change is the starting value 95, not any intermediate year.
The value 48.24% wrongly uses a smaller base or double-counts a middle year.
The value 30.61% takes the change against the final year 132 instead of the base year.
The value 42.40% is a distractor built from a mismatched pair of years.
A five-year cumulative percentage change uses only the first and last data points, ignoring the path between them.
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