the numbers you get are the ids of the app and the field in that app you reference with @all of ...
With @all of ... you get an array - that array you must parse to a string or you must pick one element out of the array to display it as text, number, date in the calculation field. What you need is:
var txt = "@All of Status Description";
var txt = txt != "" ? txt.toString() : "";
: "" means: if the field Status in Deliverables is empty show nothing; you can replace "" with any text like "no status selected"
Btw: Try dabuttonfactory.com instead of dummyimage - you can create nicer headings with less effort.