This was originally devised back in Order of the Silver Hand to make loot fast and to disperse loot evenly between all
raiders.
Bosses are worth anywhere from 5 to 10 dkp each, with wing bosses worth around 11 or 12 dkp, and the Final boss at ~15 dkp.
Items were percent based on your dkp but took up a certain amount.
DKP Capped at 1000
Here is a cost system for T10, I'm including Normal and Hard-Mode here.
Normal
60% - For Set Armor Pieces (Head, Chest, Shoulder, Gloves, Legs, Tokens) [Crafting Orb Item for these slots]
55% - Non-Set Armor Pieces (Head, Chest, Shoulder, Gloves, Legs) [Lacking set bonus, therefore cheaper]
50% - Generic Armor (Boots, Bracers, Belt, Cloak) [Crafting Orb Item for these slots]
45% - Two Handed Weapons [Hunter Only - Ranged Weapon]
35% - Necklace, Rings, Trinkets, Relic/Ranged
25% - 1 Handed Weapons, Off-Handed Weapons, and Shields [Hunter Only - Two Handed Weapons]
00% - Offset Items [Free, gives people an incentive to actually take offset items instead of DEing]
Hard-Mode
65% - For Set Armor Pieces (Head, Chest, Shoulder, Gloves, Legs, Tokens) [Crafting Orb Item for these slots]
60% - Non-Set Armor Pieces (Head, Chest, Shoulder, Gloves, Legs) [Lacking set bonus, therefore cheaper]
55% - Generic Armor (Boots, Bracers, Belt, Cloak) [Crafting Orb Item for these slots]
50% - Two Handed Weapons [Hunter Only - Ranged Weapon]
40% - Necklace, Rings, Trinkets, Relic/Ranged
30% - 1 Handed Weapons, Off-Handed Weapons, and Shields [Hunter Only - Two Handed Weapons]
05% - Offset Items [Dirt-cheap, gives people an incentive to actually take offset items instead of DEing]
Crafting Items are based on cost of the slot divided by the number of items it requires.
This system was originally devised by Treehippy.