WTF is My Gear Score?

#	Class	Name	Guild	Score
101	paladin	Ârax	Gildenboni	-240
102	rogue	Kreit		-255
103	paladin	Fayrina		-269
104	druid	Vidar	Die Ahnungslosen	-364
105	rogue	Unreached	Unreached	-400
106	hunter	Snowhair		-478
107	shaman	Shoodz		-893
108	rogue	Gizmo		-1,144