newsticker-statistics-format

newsticker-statistics-format is a variable defined in `newst-plainview.el'.
Its value is

"[%n + %i + %o + %O = %a]"

Documentation:
Format for the statistics part in feed lines.
The following printf-like specifiers can be used:
%a The number of all items in the feed.
%i The number of immortal items in the feed.
%n The number of new items in the feed.
%o The number of old items in the feed.
%O The number of obsolete items in the feed.

You can customize this variable.