Paul Wilson (25 Jan 2012)
"the tribulation extinction"

Using these numbers and a number of 50 mil to enter the kingdom, and that may be high, we are talking about over 4.8 Bil dead in the tribulation. a extinction percentage of almost 69% form current population. If you take the 50 mil compared to the pop left after the rapture the percentage is over 99%. This would make the tribulation judgment the 2nd deadliest extinction of the human race behind Noah's flood. I think it will be 3rd after the rebellion at the end of the MK.
 
Paul