Assume that a $100 purchase is made at a store on GreenBackStreet that pays 10% to the standard member.

Your organization receives 200% of the standard member amount.
20% : $20 on a $100 purchase

Your organization receives 100% of the standard member amount.
10% : $10 on a $100 purchase

Your organization receives 50% of the standard member amount.
5% : $5 on a $100 purchase

Your organization receives 15% of the standard member amount.
15% : $1.50 on a $100 purchase