I'm not expecting Jump titles to sell more digitally, I'm expecting Jump titles to sell digital copies proportionate to their physical sales, with some exceptions. However now I see your perspective; you're saying that maybe some individual series/publishers sell terribly digitally, some sell mostly digitally, and depending on certain factors we don't know where Jump lies on that spectrum. That makes sense.
"Spectrum" is the right word. Been scratching my head for the right word.
There could be tons of factors we don't know about. It's possible one demographic prefers digital medium over the other. It's possible genre of the manga has a huge effect on which medium is preferred. Or it's literally just a random thing that follows no trend. We have zero information.
Shueisha chief said 30% sales were digital. That statement in itself is against the market trend where "digital sales overtook physical". Additionally, how much of that 30% was from WSJ? What if 1% was WSJ or 28% from WSJ?
Lack of information does not mean we should just make up a number for the sake of including it. Blindly assuming data is why businesses fail.
Also, for a lot of people like us (me included) who pick on youtubers here for spreading false information with no proof, so many seem to contradict themselves by spreading false information about digital without any evidence.