Make an example, a car, then come in to do maintenance, hours fee is 500 dollars, you introduced me to the customer, I give you a discount for each purchase, as long as you 400 bucks on it, and two people are playing eight fold.
Take an analogy, a car to come in to do maintenance, working hours is 500 yuan, you introduce me to the customer' words, I give you a 20% discount, you only 400 yuan on it, and two people are 20%.
For example, when a car comes in for maintenance, if the hourly fee is 500 yuan, if you introduce the customer to me, I will give you a 20% discount. You only need 400 yuan, and both of them are 20% discount.