There are a couple of ways to answer this. If you state a figure, you risk stating something that is too high, or something that is too low. Either case, you will not benefit from this question. A lot of people suggest saying something like, "I'm sure whatever I'm offered will be a fair price." But I don't agree. It is a safe answer, but if I was the interviewer, I would appreciate numbers instead of a safe answer. So I recommend answering this question with a range. I'll explain this more in the negotiation portion, but just in case you skip that section, here are some examples.