Code for both discounts and commisions?

[Willy2]

I run a sporting goods/apparel company. We sponsor athletes. I want to create a code that the athlete can give to fans that will allow them to get a discount, while the athlete also gets a commision. I want to limit this to only certain products. I'm thinking a 10% commision for the athlete and a 5% discount for the customer.

I've read up on Shopify discount codes, but am not sure if they are suitable. Can anybody offer suggestions? Thanks in advance.