<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (October 2015) (Learn how and when to remove this template message) </Td> </Tr> <P> Per capita income (PCI) or average income measures the average income earned per person in a given area (city, region, country, etc .) in a specified year . It is calculated by dividing the area's total income by its total population . </P> <P> Per capita income is national income / total population . </P> <P> Per capita income is often used to measure an area's average income . This is used to see the wealth of the population with those of others . Per capita income is often used to measure a country's standard of living . It is usually expressed in terms of a commonly used international currency such as the euro or United States dollar, and is useful because it is widely known, is easily calculable from readily available gross domestic product (GDP) and population estimates, and produces a useful statistic for comparison of wealth between sovereign territories . This helps to ascertain a country's development status . It is one of the three measures for calculating the Human Development Index of a country . </P>

Distinguish between the national income and percapita income