Oh, that explains why I can never find sales positions for Stage albums. At this rate, they'll going to finish the week off at 900K. One million is definitely possible.
Btw, I find it can of hilarious how AKB48 as a whole are pretty much only able to release GH albums because the studio albums are done by the individual teams. It kind of makes sense why they have so many songs their singles because they have to tide you over until they have enough hits for another Set List ~GH~.