Occurrences are Page Views and Actions combined... Page Views are just actual page views.
When you are using a dimension like "Page" which only exists on Page View metrics, this is why your totals match... the grand total is showing all occurrences within the time frame for your panel... but essentially you have a filter in place for where "Page exists" (hence why you are seeing "1385 out of 2772").
Now, this confuses a lot of people, but the Page dimension, even though you will see it sent on all tracking calls (page views and actions / clicks), the Page value is actually removed by the Adobe processing on actions / clicks... this is because Adobe doesn't have a dedicated "page view" event in the event list, instead, they count the hits that have pageName and/or pageURL as a page view... so both of those are removed from the hits so that your actions / clicks aren't counted as page views.
It's for this reason a lot of people will create custom dimensions to hold Page Name and Page URL on all hits (page views and actions / clicks), so that they have those available for correlation.