And here are the taxes as a percentage of income:
You are reading that right - that's a tax burden increase of 18% for the lowest quintile. That's like a 20% pay cut right off the bat. Unless you are in the top 40% (or you know, care about stuff and stuff) I would hope this has dulled your enthusiasm.
(Method: This is a gross approximation of tax burden based on published effective tax rates from
http://www.taxpolicycenter.org/taxfacts/displayafact.cfm?Docid=456 and spending habits from ftp://ftp.bls.gov/pub/special.requests/ce/standard/2007/higherincome.txt. Current tax code values derived from summing average income tax with average payload taxes. 9-9-9 values derived from a raw 9% of earnings plus 9% on total expenditures. The actual Cain plan will likely have exceptions and caveats that would affect these numbers).