Amount definitely changes depending on closeness to the graduate. If it is a close family member or friends, than I always give more. If it someone a little less close, than I would lower the amount. As far as how much, I think that totally depends on your financial situation, and the economic atmosphere you (and your friends/family) are a part of. Also, I have graduated from high school, college and a masters program, and the amount of money has seemed to go up from each of those. So maybe the prestige of the program they are graduating from? I have received anywhere from $100–500. Not including parents.