WTF is My Gear Score?

#	Class	Name	Guild	Score
51	druid	Zipec	Tangled Wire	1,131
52	paladin	Joa		990
53	warlock	Nerli		970
54	priest	Hely		890
55	druid	Ruxx		729
56	death knight	Miara	Eternal Shadows	555
57	mage	Andamarine	Slack Crew	391
58	death knight	Hellbone	Forged	329
59	priest	Blain		-770