Over 2 million now (2017 June to September).
RT@NightmareSteam How many copies has Tekken 7 sold on consoles so far?
It is unknown if Harada included PC data in his response, but even so, the game has sold over 311,000 copies on PC according to SteamSpy data.
(=^・ω・^=) Kuroneko S2 - Ore no Imouto - Steam, MyAnimeList and Twitter - PSN: Gustavo_Valim - Switch FC: 6390-8693-0129 (=^・ω・^=)