If you take the difference, then round, it's 9. (The 8 was a bad report. For some reason the Pennsylvania secretary of state put the wrong number up for one county.)
So, at least this time, both candidates can spin it their own way without any falsehoods. The difference is either single digits or double digits depending on when you round. Either way, the arithmetic is honest and, to be fair, doesn't really make any significant difference.