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If you connect directly to a view or a table in a database with a live connection in Tableau and apply this filter, Tableau will generate custom sql with a WHERE clause like WHERE Proffit between 100 and 1000. This happens automatically, you won't need to do it yourself.
If you want to do it yourself you either need to use custom SQL and parameters - it's well documented here Connect to a Custom SQL Query
Or connect to a stored procedure and use parameters much in the same way.