The preliminary pay-per-view buys estimate for WWE
's Night of Champions pay-per-view event on September 16, 2012 is 189,000 worldwide. This is up from 161,000 buys for last year's show headlined by WWE Champion CM Punk
vs. Triple H
The breakdown is 100,000 domestic buys (53 percent) and 89,000 international buys (47 percent).
The event was headlined by WWE Champion CM Punk vs. John Cena.