The formula to calculate the national income is:
NI=C+GE+I+E−IM+FPNR−DPBNR
Where:
National income is a monetary estimate of the total monetary income of a country. It’s similar and in some cases the same as the GDP, or gross domestic product.
Let's consider an example:
Using the formula to calculate the national income:
NI=1,000,000+500,000+300,000+200,000−100,000+50,000−30,000=1,920,000
This means that the national income for this scenario is $1,920,000.