Sony Pictures Entertainment doubled back and agreed, without alteration, to Walt Disney Studios' previous proposal to co-produce a third Spider-Man film following the originally-failed negotiations going public, according to Deadline.
Under this new deal, Disney will reportedly finance 25% of the third Spider-Man film and receive a 25% equity stake in the film - that's 5x their reported 5% for Spider-Man: Homecoming and Spider-Man: Far From Home. When the Sony/Disney falling out over future Spider-Man films first became public, several different percentages were reported without confirmation as to which was accurate.
To get an idea of the money being talked about here, Spider-Man: Far From Home had a reported $160 million production budget and a $1.13 billion box office gross.
Sony Pictures third Spider-Man film (co-produced by Marvel Studios) is scheduled for release July 16, 2021.