So what that means is we're slowly purifying the protein where we're moving those unwanted proteins as shown by padded increase in the band distribution number. So that is what should be shown by this table. So let's calculate this box. In this box, as always, the specific activity is 85,000 divided by 100. The two zeros cancel out and we have 850 divided by one and that gives us 850. Now, what about this quantity?