What are the formulas of gross profit rate, profit rate and net profit rate?

1. Gross sales margin = (net sales revenue-product cost)/net sales revenue × 100%. In the financial statements of listed companies, the gross profit margin of main business sales = (main business income-main business cost)/main business income × 100%.

2. Sales profit rate = total profit/operating income × 100%.

3. Net profit rate of sales = (net profit/sales revenue) × 100%.

The net profit rate of sales is also the profit rate of sales, which is an index to measure the income level of sales income of enterprises. It belongs to profitability indicators, and other indicators to measure profitability include asset profit rate and return on net assets.