Calculation rounding when expecting decimals

Summary

Calculation rounding when expecting decimals

Content

I am have a calculation column that I am unable to get it to provide me with decimal results.  I have tried changing the column properties, tried casting as integer, as double, as decimal (which gives an error), float, and as real.  All have only provided whole numbers even though it has 3 decimals showing (ex 7.000).

Here is my calculation:

(CASE WHEN "- Performance Rating"."Number of Workers" IS NULL THEN 0 ELSE "- Performance Rating"."Number of Workers" END)/(SUM("- Performance Rating"."Number of Workers"))

 

Results look like this:

Calculated Rating      # Employees         Sum # Employees         Percent of Employees