Hi andyisc00l,
I may do engineering mathematics at degree level, but that doesn't mean I'm a statistician. Still, I'm going to put a statistician's hat on for a moment.
The thing with stuff like percentages is you can use them as comparisons in too many different ways to be definitively useful. That aside, they can still be used to paint a picture.
To save me some time, let's take but one example of yours...
-38.02% ScienceMark 2.0 memory bandwidth actual: -61.34%
Conroe needs to increase its score 61.34% to reach that of the FX-62's, yes... 5048.13 * 1.6134 = 8144.65. However,
our figure there is esentially saying that Conroe gets 62% (100-38) the score of the AMD... 8144 * 0.62 = 5049.
So you can argue the points of both figures. What's important here, however, is consistency. I haven't checked other numbers yet, but can probably do so in a little while, to see if they all paint the picture in the same way. As long as the do that, then really there's nothing wrong and I leave hating percentages. If there is something inconsistent, then it probably needs rectifying, and I still hate percentages.