Sources used
http://myanimelist.net/forum/?topicid=737625http://www.someanithing.comStalker estimation -> First week sales numbers
Underestimated(Went up by +20% or more).
*1.4k -> *3.1k Ao Haru Ride(went up +121%)[Series is popular among females][<2k sales and/or estimate]
10.8k -> 17.9k Free S2(Went up by +66%)[Series is popular among females]
*7.8k -> 12.8k Persona 4 Golden(Went up by +64%)[Amazon only edition]
*4.5k -> *7.5k Kuroshitsuji Book of Circus(Went up by +40%)[Series is popular among females][Amazon only edition]
*3.0k -> *3.8k Bakumatsu Rock(Went up by +21%)[Series is popular among females]
Overestimated(Dropped by 20% or more)
Small difference between stalker estimation and the actual sales*2.1k -> *2.1k Jinsei(no change)
Subject: Volume 1 under/overestimates. 
2014-09-03, 08:02