My guess would be that they don't actually know. The $3 billion figure itself seems to be an estimate; there are no references to what the figure was last year. Additionally, Epic makes more stuff than just Fortnite, and the article didn't bother to even try to attribute income to anything other than Fortnite.
I had to read the article twice, because at first I was also confused as to whether they were referring to operating income or net income. Epic is a private company so they aren't making their income statements public.
I had to read the article twice, because at first I was also confused as to whether they were referring to operating income or net income. Epic is a private company so they aren't making their income statements public.