So this divided by this gives us 3500. And what that means is, after all the procedures that we conducted, the final extracted mixture is 3500 times as pure as that initial sample, and that is a high amount. Now, for this set of procedures to actually be good, this yield has to be a high enough yield. So let's see what that yield is. So we take 70,000 divided by 200,000. That gives us 70 divided by 200 or 35 divided by 100.