Remember that time you got a better price for something? Was it for an annual contract renewal? Was it for a new piece of equipment? Did you talk someone into a better deal because you were buying a large supply of something? These are the types of examples the interviewer is looking for. Simply share your scenario! Explain who you were working with, what you were buying, and why you received a better deal. Finally, be sure to share how much money you saved the company! Even 100 makes a difference!