Revenue is the money a company receives by providing services or selling goods to customers. Costs are expenses for rent, salaries, supplies, transportation, and many other items that a company incurs from creating and selling goods and services. For example, some of the costs incurred by Microsoft in developing its software include expenses for salaries, facilities, and advertising. If Microsoft has money left over after it pays all costs, it has a profit. A company whose costs are greater than revenues shows a loss.
revenue, expenses, profits -- profits belong to ownership -- return on investment.