Wow, overall sales are down 20% from April 2015? Batman is currently the only ongoing title that is still maintaining over 100,000 copies per month. Even Star Wars has dropped below that threshold now. I wonder if it is a sign of super-hero/comics fatigue?
Mind you, most of the Marvel titles are unreadable now, and with Snyder bowing out from the monthly Batman title I expect DC will see a significant drop in readership for it (which could in turn hurt other DC Bat-titles as well). We will see if Rebirth can rekindle some of the New 52 magic, but if it does not then this could be an interesting year for comic sales.