Is there a way in Evo to recognise a value as negative when the sign appears after the value, in a .txt file?
A quick trick would be to use a few preparation block to fix the data.
E.g. a Search/Replace block to fix the - symbol (by placing it in front of the number), followed by a Field Organiser to change the field type from text to decimal.
I've left an example here: https://daily.omniscope.me/Test/NegativeNumbers.iox/