"Tell me about a time you found a solution to save the company money."
This question is also for a management level position. If you are not in management, then you probably won't face this question. But just in case, here are a couple of answers. If you are not in a position to save the company money, then you could think of something small.
Short Answer
"Hmmm... I wasn't really in any position to save the company money, but I have one small example. When we were a smaller company, we didn't get a significant corporate discount on our hardware. After we grew in size, we qualified for the larger discount, but nobody realized that we now met the quota. I pointed this out and we started saving 5% more on our hardware."
Long Answer
"We were outsourcing a portion of our work to a 3rd party company. We had two phases for this project. After the first phase, I was given the task to complete the work because the original worker responsible for this project left our group. I quickly got up to speed on the details of the work. I analyzed the information and realized that one portion of the work given to them could've been done by our group because we already had the infrastructure in place. So I only spent half a day to set this up and in turn, we were charged 35% less for the second phase from the first one."
This is a simple story of an experience. It doesn't include every detail on the type of work that was outsourced, or what I specifically did during the half days of work. If they choose to ask this, then I will be prepared to answer it, but this answer gives enough details to allow the interviewer to understand how you contributed in saving the company money. Also, depending on the field of work, answers will vary. If your job specifically oversees the finance, then it is probably important to think of a much better answer specifically for that position. Think of some scenarios, write them down, and feel free to ask us if the grammar is correct.