Discussing salary in a recorded interview is less than ideal. So you'll want to be definitive without closing the negotiation, either. The reason this question comes up towards the end of an interview is to gauge your self-awareness of how the interview has gone. How you rate your professional worth can be revealing. Therefore, the best way to discuss your salary expectations is through transparency and to present it with the facts. Use your current earnings as a base-line. Share any perks, insurance, bonuses, or incentives you receive as well. From there, contrast your current earnings with where you feel you are on your career path to where your ultimate career goals are heading. This should give them a reasonable expectation of what you are looking for from your future employer. When presenting the facts in this manner, there is nothing in what you are saying which could undermine your own confidence, and it keeps the dialogue open.

You always want to be in the position of seeming prepared to answer the question posed, while exuding confidence and communicating clearly. Enunciate your words, avoiding stutters or long pauses. Sounding too rehearsed likewise can make you sound boorish. Practice in front of your computer's camera, trying not to look at yourself on the screen, but maintaining eye contact with the camera lens as if you're speaking face-to-face with a person, and keep at it until you are relaxed and seem natural.