Yeldon on Waiver, how much FAAB

sigh fournette got hurt again, and the yeldon owner dropped him before the game. How much faab should i use

I have CMC,Fournette,breida, and clement

FULL PPR how much faab should i use? 10man

You have fournette.
All of it.
But seriously. A good chunk. You know your league. But it might need to be 40% plus.