Securing Premiership survival will boost Sunderland's club coffers by at least £17m next season.
But having remained in the Premiership, the Black Cats will bag £30m.
Peter Hackelton, a senior manager with Deloitte's sports business group, said Sunderland's first season back in the top flight was worth more than £33m in TV payments and prize money alone.
He said: "As well as TV revenue, there is a certain amount allocated to merit money.
"For every place above the bottom, it is about three-quarters of a million.