As far as I can tell, news source #1 is referring to something totally different but somewhow this slipped by the editor.
News source #2 dropped the original figure from 85 percent to 82 percent. WTF? It does not change the significance of the main finding that more than 80 percent of TweedleDeeDum was fucked up.
News source #3 gets the number right, I think, but I feel compelled now to track down the original just to be sure as this is relating to something in a Petting Zoo report.
Goddamm. There goes Friday afternoon ...