no way to tell for sure, but I would say you prolly have somewhere in the neighborhood of 30-60%
If you really wanted to find out you could weigh your product now, then do an acetone wash, weigh the resulting powder. Then do the math to figure out the percentage of active ingredient in your original product. This will give you a good idea of all of the product you get from that point on if it is always from the same person. Dealers usually stick to the same cutting recipes.
I never used it much back in the day only for a speedball here and there. But I sold the shit out of it. And I did this exact experiment and found out it was a waste of my time b/c the stuff I was getting was almost always 90% yield. The remaining 10% were likely just impurities from the process. I of course got my shit in Miami and agreed to pay more for better product and I didn't care about how much it was as long as it wasn't cut.
But I had to stop that shit, the people I had to work with were scum. Very dangerous too, and they eventually wanted me to get a tattoo that showed my devotion to the latin kings. As a white Jew I was not about to do that lol. Too bad because they lost a huge amount of business when I got out of the game. Oh to be young and dumb.
