5 Evidence that proved elvis did sold more than 2 billion,just after elvis death below
The first 2 website below is where this article about elvis Receiving a plaque from RCA commemorating the pressing of the two billionth record at RCA's Indianapolis pressing plant (which was done during the manufacturing of Elvis' new album, Moody Blue) before his last concert in Indianapolis on June 26, 1977. while the 3 youtube website below are evidence that after elvis died his record are sold out and there is shortage supply of records because of big demand , so as all records were sold out so elvis did sold 2 billion records after his death
https://au.pinterest.com/pin/396809417138471175/
http://kool.cbslocal.com/2014/06/26/today-in-pop-music-june-26-elvis-leaves-the-building-for-the-last-time/
1977 – Elvis Presley made his last ever stage appearance at the Market Square Arena in Indianapolis. Before the show, he was presented with a plaque commemorating the 2 BILLIONTH record to come out of RCA’s pressing plant. He would be dead less than two months late

The 3 youtube website below are evidence that proved just after elvis died all his records are sold and there are shortage of his records
https://www.youtube.com/watch?v=WTXJkTGu7o8
https://www.youtube.com/watch?v=Gg_REmFuRBc
https://www.youtube.com/watch?v=Gg_REmFuRBc&t=5488s

Elvis Presley Racks Up 2.8 Billion YouTube Hits To Eclipse Kanye West, Lana Del Rey
https://www.forbes.com/sites/markbeech/2017/08/15/elvis-presley-racks-up-2-8-billion-youtube-hits-to-eclipse-kanye-west-lana-del-rey/