It was ONE vote on the first ballot; forcing a second ballot.
Here it is:
http://dailycaller.com/2017/02/25/tom-perez-squeaks-past-keith-ellison-to-win-race-for-dnc-chairman/
You need to re read the article you just posted. LOL
“The vote went to a second round after Perez fell just one vote shy of the 214.5 needed to win the chairmanship. Ellison received 200 votes on the first ballot”
213.5 minus 200 comes to 13.5.
Unless maybe you are using Common Core math?
When Perez supporters gathered at a party at the Westin Hotel in downtown Atlanta on Friday night, they thought they had about 220 votes, which would have given them a majority.
Instead, they clocked in at 213.5 in the first round some Democrats abroad and from the territories only get half votes with eight DNC members abstaining. That left the door open for Ellison, who was only 13 votes behind.
http://thehill.com/homenews/news/321210-how-perez-edged-ellison-for-dnc-chair