[wiggen]

Says long term unemployed as a percentage of the total unemployed. The pool is the unemployed. those are all percentages of that pool.

[PapaBear3625]

Looking in the pdf, the label associated with that chart says "Total Unemployed and Long-Term Unemployed Within Each Education Category, Quarter 1, 2012".

The only interpretation that makes sense is that the long-term unemployed figure is the percent of unemployed within the category which is long-term.