The net profit margin shows how much a business is generating profit for every dollar of cost, expenses, interest, and taxes involved. It is displayed as the percentage of how much of each dollar collected by a company as revenue translates to net profit. The calculation is similar to gross profit margin, but the formula also subtracts expenses, interest, and taxes from revenue.
Net Profit Margin = ((Revenue Cost of Goods Sold Expenses Interest Taxes)/Revenue) – 100