Business concern is a term used to describe a company or organization that is engaged in commercial activities. Loss, FIRM, NET, SALES, and bottomline are all terms related to business concern. Loss refers to the amount of money a business has lost during a certain period of time. FIRM is a term used to describe a business that is legally recognized as a separate entity from its owners. NET is a term used to describe the total amount of money a business has after subtracting expenses from income. SALES refer to the total amount of money a business earns from selling goods and services. Bottomline is a term used to describe the total amount of money a business has after subtracting all expenses from its income.