Numeric to Text

[Meowzer]

I want to create a column that gives a Yes/No answer if another field (numeric) is not null.  For example, if a sales count returned 515, I’d want a “Yes” to indicate that there were sales, else a “No” to indicate no sales.
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I have tried IF (

.[COUNT] is not null) then (‘Yes’) ELSE (‘No’), but I get an error when I run the report.