Why not? VG Chartz is where it says it sold more.
Because VG Charts is a piece of crap and has a bad history of getting sales wrong. To be more precise, their estimates are usually off when the NPD numbers come out. On top of that, they don't disclose their methodology of how they got their sales estimates, which makes them even more dubious.
EDIT: According to their site, they estimate that the Wii U version sold 250,000 copies. However, Sega's financial report shows that the Wii U version sold 310,000 copies. Even more of a reason not to trust them.
Edited by magiciandude, 28 July 2013 - 07:42 PM.
Of Nelson and Murdock. Avocados at law.
Attorney at day, vigilante by night.