Pooh, your link is useless. At one point it states:
2012 Popular Vote: 50%, Romney 49%
The actual results were 50.9 to 47.1. Huge difference there. Throws all further calculations out.
Even eliminating third party candidates from my methodology above, I get electoral votes of 279.37-258.63 for a popular vote or 277.5-260.5 for a straight proportional electoral vote.
Once again, a negligible difference.
Proportional electoral effectively equals popular vote.
Edited 11/9/2016 22:19:03