Last of Us at 7 Million according to Twitter! VGC way below

[mornelithe]

bouzane said:
Their figures are obviously shipped plus digital sales. That being said, I would not be surprised if the game was indeed under tracked.

Wouldn't that then mean there're roughly 2.36 million copies of TLOU sitting on shelves (VGC has it at 4.64m)?  That...doesn't seem right, does it?