Revenue is the total amount of money a business takes in during a given period by selling goods and services. Profit is the amount of money a business earns above and beyond what it spends on salaries and other expenses needed to run a successful operation. A loss occurs when a business’s expenses are more than its revenues. If a business loses money over time it will have to close, putting its employees out of work. The business environment is constantly changing learn how to become a master of adaptability.