what would a score of 100% represent? ... 8 strokes above par? what does that number say that "8 strokes over par" doesn't?
you could use percentages in a more clear/understandable manner if you used them in the following manner ...
1. percentage of the field scoring below par / above par
2. percentage of the field who scored within 2 or less / more strokes of par
... lots of other practical examples can be devised. the point is, percentages are more meaningful when they are used for the basis of a comparison.