Here's a list from an Excel sheet I'm maintaining of the sales figures for each series in the New 52, for those who want to see how their favorite title is trending. The figures are taken from Diamond Comic Distributors (via Comichron), who keeps track of this sort of thing. In the following tables, assume the May issue is #20 unless otherwise noted.
If anyone wants additional back data for a series (I have the full run of everything since September 2011), I'll post it. To make the chart easier to read, I put in the ranking for every fifth series.
Series in italics have already been cancelled and are finishing out their run. Batman, Inc. was not cancelled due to sales, but is instead ending after 13 issues as its writer planned.
|Series||May 2013 sales (#20)||April 2013||March 2013||February 2013|
|JL of America (#4)||77856||83283||91734||307734|
|5. Green Lantern||67414||71014||69801||71060|
|Batman, Inc. (#11)||57298||56461||64067||55414|
|Batman: Dark Knight||50423||52641||54269||55990|
|10. Action Comics||48324||52004||61879||57189|
|Earth 2 (#12)||43983||45466||46213||48208|
|Green Lantern Corps||43026||43901||44215||44497|
|GL: New Guardians||40569||41479||42028||42285|
|20. Red Hood & Outlaws||34542||36628||37731||53076|
|The Movement (#1)||29246|
|25. Green Team (#1)||27775|
|World's Finest (#12)||27073||27452||28469||28332|
|Justice League Dark||24693||25406||25664||25841|
|Birds of Prey||21126||21706||21957||22112|
|Phantom Stranger (#8)||16269||17325||17375||18032|
|Legion of Super Heroes||15532||16014||16148||16242|
|40. JLA's Vibe (#4)||14970||16971||19092||27051|
|Dial H (#12)||12381||13354||13084||13541|
|45. Ravagers (#12)||12221||13073||13466||14223|
|Deathstroke (final issue)||11768||12391||12306||12626|
|Savage Hawkman (final)||11104||11926||12021||12376|
|50. Team 7 (#8, final)||10805||11609||11805||13005|
|Sword of Sorcery (#8, final)||10677||11411||11776||12334|
|Fury of Firestorm (final)||10235||10602||10679||11100|
That's not good first issue numbers for Green Team or Movement; that's the same 27-29,000 area where Katana, Vibe, and Threshold debuted, so unless they have very slow rates of decline (or DC is very patient with them like with Batwing), expect the newcomers to have eight issue runs or so.
On the other hand, if you're a Constantine or Talon fan, take heart. Your books are among the most stable on the chart based on the last month of change: Constantine is high enough to be considered safe if that small drop is repeated over later months, while Talon is a bit low but probably with the legs to survive at least another couple rounds of cancellations.
Next month should be interesting, with five old books coming off the charts to make room for Batman/Superman, Superman Unchained, and Larfleeze (welcome to the New 50), and a possible bump for the Superman books from the new movie.