How it’s built
- Read from the joint Nintendo and Pokémon Company sales release. Its credits give The Pokémon Company as publisher, Nintendo as seller and Game Freak as maker in Japan.
What we assumed
Nothing. The figure is used as published.
Sanity check
The release came from both companies, not Nintendo alone. Whether Nintendo books Japanese sales as principal or agent is not stated.
Where it comes from
The line in the source
うち国内販売本数405万本