The store's reporting problems started late Sep, and lasted for at least two weeks. I thought that's the reason I'm seeing drastically reduced sales. But then the problem was supposedly fixed, and nothing changed for me.
I read in the forums something about item placement changes in the store from around the same time, so maybe that's the reason. For my modest sales volume it decreased to about a third (not BY a third, but TO a third). October was the worst month in half a year, and until that point the trend was gradual increase.
Does anyone else see reduced sales since late September or early October?