Red Velvet went from selling 100k to selling half a million with one comeback -> 500% increase
Aespa went from selling 700k to selling 1 700 000 -> 250% increase
BP went from selling 1 million to selling 2+ million -> 100%+ increase
Twice went from selling 900k with their last album to selling 1 million -> 10% increase
Why is their fanbase stagnant and nonimpressive?