+510 Franklin the Fly lives at one corner of a cube of side length 1. He doesn't like to wander too far from home; in fact, Franklin is only willing to travel to a point on the cube if he can reach it by crawling a distance of at most \sqrt{5} along the surface of the cube from his home. Which of the following percentages is the closest to the proportion of the surface of the cube that Franklin can reach?
