Per capita income in any West African country is measured by

Per capita income in any West African country is measured by dividing the Gross National Product (GNP) by the total population. Per capita income is a measure of the average income per person in a particular country. It is calculated by dividing the total Gross National Product (GNP) of a country by its total population. GNP refers to the total value of goods and services produced by a country's residents, including those living abroad. By dividing GNP by the total population, we get an average measure of the income of each person in the country. This allows for a comparison of the standard of living across different countries. The higher the per capita income, the better the standard of living in a country.