I can't add a column of numbers.  

I've entered =SUM([Amount]



Keep receiving UNPARSEABLE error.

Is this incorrect?


I can not get two parent rows in a column to sum or count as a total. I only get "0".


I have parent row#1 that counts 4 children with ="Files: " + COUNT(CHILDREN()) and I have parent row#2 that counts 3 children with ="Files: " + COUNT(CHILDREN()) . However I am not able to total these two parents