Ilima-lei is a Bellator champ and her last disclosed purse was $75k, no bonus. Cyborg got $250k and Budd got $350k, I guess as a going away present. Paige was on around $45k show with a similar win bonus in the UFC, which she rarely collected. She would have been earning more if she'd actually won fights ..... most UFC contracts go up when you win and mark time if you lose.
I don't think the UFC will care if Paige goes, it helps with their legal battles, hey look we let one of our most marketable young fighters go to a rival promotion.