In accounting, turnover is the income that a business obtains from its normal commercial activities, generally from the sale of goods and services to customers. Also called revenue, sales or turnover. Some companies generate this volume through interest, royalties, or other charges.[1] Turnover may refer to the income of the business as a whole, or it may refer to the amount, in a monetary unit, earned over a period of time, such as "last year, company X had a turnover of 42 million." Accounting profits") or net income") generally involve the calculation of total turnover minus total expenses in a given period.