Well, given that 99.99% of 8 billion is 7,999,200,000, that would mean 800,000 people were left on Earth. The majority of those would be in Asia (60% of that number, so apprx. 480 thousand) then Africa (17% or apprx. 136 thousand). In the USA, there would only be apprx. 33 thousand people left.
I...