These were released today, everything down. Looking though the figures the main reason is that Victoria, NSW and Queensland in that order went down. The big losers tend to be Fairfax's publications. News Ltd, I noticed tend to be much more stable, Monday to Friday looks better than Sunday.
According to the publishers, newspaper sales are down as people are migrating to be digital.
I decided to check with a few newsagents first, what is interesting is that several did not report these falls. What they think is happening is much of this fall is due to many peripheral sellers (subagents) of newspapers who are no longer handling newspapers. Furthermore, they think some of the drop is because many people are dropping marginal runs. If so maybe people are switching to digital as they have no choice.