Originally Posted by **********

Nothing wrong with that saying.

If you charge $100.00 per hour for work, do 11 hours but charge a total of only $1000, you have given your client 110%.

When your girlfriend promises you something extra spicy for valentines day and then surpasses you for bringing her girlfriend into bed with you, she's giving you 200%.

When you give a customer a 1 month credit to your subscription site because of anything he was dissatisfied with, you are already giving him more than 100%.

etc