Question

how is per capita income of a country is derived​

Answer 1

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Per capita income can be used to determine the average per-person income for an area and to evaluate the standard of living and quality of life of the population. Per capita income for a nation is calculated by dividing the country's national income by its population.

Answer 2

Per Capita Income is the average income of an individual in a country. It is obtained by dividing the Gross Domestic Product (GDP) or the Net National Product (NNP) by the total population of the country. i.e.,

Per Capita Income = (Gross Domestic Product/Net National Product)/(Total Population)