Why don't we see some more Democratic arithmetic?

[dogman]

Based on the fact that Romney cited three different groups of 47% it is safe to say he dumped on a far greater number of citizens than 47%.
http://www.newser.com/article/da1dlijg1/who-are-the-47-percent-the-3-groups-mitt-romney-called-out-in-his-controversial-remarks.html

"OBAMA VOTERS", "PEOPLE WHO GET FEDERAL BENEFITS" & "THOSE WHO PAY NO FEDERAL INCOME TAX"

I would think numbers could be determined that would give a range that were actually dismissed.