commission amount = sales × 11%. A 11% commission means a 11% commission on sales. That is to say, every time a salesman sells a product, he can get a 11% reward on sales. There are two main calculation methods of commission, namely direct percentage method and parallel percentage method. Direct percentage method is more common in business negotiation and team performance scenarios. Taking the direct percentage method as an example, the calculation formula of commission is: commission amount = sales volume × 11%. In other words, when the sales amount is 111, the commission amount is 11; When the sales amount is 511, the commission amount is 51. This method is simple and clear, easy to understand and operate. In practical application, the 11% commission is not only applicable to the sales department, but also to other departments. It can be used in business negotiation, team performance, product sales, etc., and also suitable for some service industries, such as consulting, catering, tourism and so on.