Ady help needed for full dough batch!

Hello. I’m switching from Idy to Ady I use a 50lb bag of bread flour , 32lb water 2 percent oil and 2 percent salt. How much ady should I use? Any input would be greatly appreciated! Cheers!

http://www.theartisan.net/convert_yeast_two.htm

Here is a conversion table for yeast