Ask and ye shall receive...
Looking at the Cuyahoga County website. Either they're lying or the graphic is not quite accurate.
In summary, there were 927,996 registered voters; 650,437 votes cast; 447,273 for Obama, 190,660 for Romney, The remainder in under 1% chunks split between five* other candidates.
*Presumably, the third party candidate, as well as the candidates for the fourth, fifth, sixth, and seventh parties.
Please, folks: we have enough real truth behind our position. We don't need to make stuff up. Let the LibDems do that.
http://boe.cuyahogacounty.us/pdf_boe/en-US/ElectionResults2012/Nov2012/amended/11062012FinalAmendedofficialResultsbyContest.HTM