Winston Groom was to receive what percentage of the film 's net profit ?
Winston Groom 's price for the screenplay rights to his novel " Forrest Gump " included a 3 % share of the profits ; however , due to Hollywood accounting , the film 's commercial success was converted into a net loss , and Groom received only $ 350,000 for the rights and an additional $ 250,000 from the studio .