Exclude fields from a report using RIGHT() command

Hello,

I have an audit table that I am running queries against to ensure there is not data loss.  All changes in our database get logged in this audit table.  For the purposes of my query I am trying to exclude any column that ends in "_F".

I know I'm close, I'm just missing something that is staring me in the face.

SELECT * 
From Audit
WHERE OldValue IS NOT NULL and NewValue IS NULL and RIGHT((SELECT ColumnName FROM Audit WHERE ColumnName <> '_F'),2)

 I'm getting errors at the SELECT statement after the RIGHT and the comma that follows.

As always, any help is greatly appreciated,

David92595