Net Income Equity (NIE) is a measure of the total amount of money a business has earned after subtracting expenses such as depreciation and taxes. It is a useful way to gauge the financial health of a company, as it provides an estimate of how much income the business is making compared to its expenses. By understanding NIE, companies can make more informed decisions about their finances and investments. Furthermore, NIE can be used in conjunction with other metrics like return on investment to get an even better snapshot of a business’s overall performance.