Jogo is estimated at 8 or 9 fingers so Gojo should be worth at least ten fingers as he managed to overwhelm Jogo's territory with his own. Given that neither element inherently counters the other, I assume that the expansion battle is based on amount of cursed energy.
Jogo is a major antagonist in the anime/manga series Jujutsu Kaisen. He is a special grade Cursed Spirit, who alongside several others of his kind, conspired to bring about the destruction of humanity and the construction of a society where Cursed Spirits like himself will reign supreme.