There are two ways to get a quick overview on your assets state.

First you can click the little calculator-icon in every folder-listing. Either for a single folder, or for all the folders by selecting the icon in the table-header.

Folder-listing. Icon for showing state and size is highlighted

The second option would be to perform a search for files with the status "live" or "archived"

scoopa search, showing how to search for asset state