The Last of Us has sold over 17 million copies as of April 2018

[Acevil]

Kyuu said:
"Iz okay to combine SSB WiiU with 3DS numbers to gauge popularity. Iz not okay to do the same with TLoU.. even though unlike SSB, the remaster offers very little to double dippers"

I think the better example would have been GTA5 PS3/360 and PC/XboxOne/PS4 or the Switch Ports of Wii U games.