The manga had 5 million copies in circulation in September 2020, and about 8 million copies in February 2020.
The manga had about 10 million copies at the end of March prior to the anime’s April premiere.
The 25 million is for copies in circulation that are not necessarily all sold, and are not copies printed and sold.
The official Twitter account for Ken Wakui’s Tokyo Revengers manga announced on Wednesday that the manga has more than 25 million copies in circulation, thanks to new printings of all of its volumes.