I've only just now gotten Epoch's realtime cancelation stats integrated with UMD. So now I'm able to show you more details on your members who are active, canceled, and expired.
When you go to your Stores section (linked on the left of your profile), you would see the "number of subscribers" for each store. Up until today, the number was a count of how many total signups you'd ever had, including those expired. Now, it only shows how many people have access into the site's members area at this exact moment. So it's bound to be lower.
If you click that number, you'll see a breakdown of subscriber details for that store. You can also get to this page by editing the store itself and clicking the Subscribers button. I have also provided a direct button link to your combined subscriptions, at the top of your Sales page. There are a few known issues, but I am working on them and none of this affects actual sales or payments.