Adding percentages to multiple counts in one SQL SELECT Query
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I have a SELECT statement similar to the one below which returns several counts in one query.

    SELECT  invalidCount = (SELECT COUNT(*) FROM <...a...> WHERE <...b...>),
    		unknownCount = (SELECT COUNT(*) FROM <...c...> WHERE <...d...>),
    		totalCount	 = (SELECT COUNT(*) FROM <...e...> WHERE <...f...>)
		
This works fine but I wanted to add two percentage columns to the SELECT:

    invalidCount * 100 / totalCount AS PercentageInvalid, 
    unknownCount * 100 / totalCount AS UnknownPercentage

	
How do I modify my SELECT statement to handle this?
