Dave Meltzer brings this information regarding the number of pay-per-view buys for UFC 114 via the Wrestling Observer:
The earliest cable estimate is 925,000 buys, which would make it the fourth highest number in UFC history. Any estimate this early is a very rough estimate, and the real number could end up significantly higher or lower. Based on that number, it would trail the 1.6 million for UFC 100 and the 1.05 million for the 2006 Chuck Liddell vs. Tito Ortiz fight, and right at 1 million for UFC 92 (a triple main event of Evans vs. Forrest Griffin, Frank Mir vs. Antonio Rodrigo Nogueira and Jackson vs. Wanderlei Silva). It would be in the same range as UFC 91, with Brock Lesnar vs. Randy Couture, and UFC 94, with the second Georges St. Pierre vs. B.J. Penn match. Both of those shows were really one match drawing shows.
UFC President Dana White had estimated UFC 114 would do approximately 850,000 pay-per-view buys prior to the event. And that is not just a number they pull out of thin air. They have a team of experts who study buy-rates and viewer statistics.
If the buys do end up being 925,000 or more that is huge considering UFC 114 was basically built around the main event between Quinton Jackson and Rashad Evans. Few people likely decided to order the UFC 114 pay-per-view because Michael Bisping was in the co-main event.
Meltzer also goes on to estimate that Rashad Evans pocketed around $2 million dollars for defeating Jackson.
HT: BloodyElbow.com