Pre-tax Profit on Sales
Also known as Profit Margin; Profitability. Calculated by dividing the Pre-tax Income by Net Sales: (Net Income / (1 - Tax Rate)) /Revenues.
This measures the effectiveness of management in controlling expenses and is a useful measure of overall operational efficiency when compared with prior periods or other companies in the same business. This “return on sales” varies widely between industries (e.g. 2% return for supermarkets is reasonable, but manufacturing industries should return 4-5%). A declining profit margin can be caused by declining sales, declining efficiency, aging plant and equipment, or inappropriate management decisions.
If quarterly pre-tax income is not available, you can estimate the tax rate from the yearly tax rate.