The % is on a couple of threads here on RIU and I think it's in the 33% range, so the "9 ounce" answers you were getting are going to be pretty close. The biggest issue is how much moisture you take out of the crop.
This topic hasn't been posted to the other site where you posted this question (I frequent both sites) but, if you're a DIY'er it is a
great way to dry and cure your crop. I "built" a Koolatron dryer for my Spring 2024 grow. The instructions are in the thread and, if you've got the basic tools, it's really quick to put the pieces together. Highly recommended.