Operating income is a company's profit after its expenses such as wages, depreciation, and cost of goods sold are deducted.

Net operating profit after tax is a company's profit from its core operations after paying taxes.

How Do You Calculate Net Operating Income? Calculating NOI in real estate is a simple formula that takes into consideration all income and expenditures per property into one comprehensive calculation.

A real estate capitalization rate, or cap rate, is a popular metric to estimate the rate of return on an investment property.