Jerry earned the vast majority of his fortune thanks to the sitcom "Seinfeld" which has proven to be one of the most-profitable shows in television history, in terms of syndication royalties.
Jerry owns 15% of the show's backend equity points. So not only did he earn a fortune from base salary while the show was on, he has earned exponentially more in the years thereafter from global syndication sales.
After his second year he transferred to Queens College where he earned a degree in communications and theater.