1, the profit is equal to the sales revenue minus the cost.

2. Profit percentage, that is, gross sales margin, that is, gross profit accounts for the percentage of sales revenue.

3. Gross sales profit is equal to the difference between sales revenue minus sales cost divided by sales revenue and multiplied by 100%.

4. The net profit rate of sales is the percentage of net profit to sales revenue.

The net profit rate of sales is equal to the net profit divided by the sales revenue and multiplied by 100%.

5. Operating profit margin is the percentage of operating profit to sales revenue.

Operating profit margin is equal to operating profit divided by sales revenue and multiplied by 100%.