Sorry I don't have screenshots for this...
I'm playing v. 2.002 on Chrome, and I currently have a CpS of 11.126 sextillion. Of this, my Wizard towers generate 105.726 quintillion and my Portals generate 106.838 quintillion.
Both of these should show as being 1% of the total, but they show as "(0% of total)."
This doesn't seem to apply elsewhere; for instance, my Grandmas are generating 6.824 quintillion and my Alchemy labs are generating 14.778 quintillion and both correctly display as generating 0.1%.