>>2099203There aren't ever going to be any numbers for most of it because it isn't public information. There are three examples i can think of that demonstrate how much money merchandise can bring in though.
Nijisanji released a blu-ray of their concert tour near the end of last year it cost around $170 and sold 8,276 copies in the first week on sale raising roughly $1.4 million.
The album they released in the same week sold about 32,000 copies at around $35 for another $1.1 million.
We have the figures for these because they are tracked by Oricon.
The crowdfunding they did for merchandise that one time raised around $650k for one lot of merch for a few members of varying sizes.
