How much does it cost to craft a Ring of Ki Mastery? According to the rules for Forge Ring, "To craft a ring, you must use up raw materials costing half of the base price." (http://paizo.com/pathfinderRPG/prd/coreRulebook/feats.html#forge-ring) however when we look at the entry for Ring of Ki Mastery (http://paizo.com/pathfinderRPG/prd/ultimateEquipment/ringsRodsStaves/rings .html#ring-of-ki-mastery) the entry says the craft price is 3420 gold, which is 34.2% of the base price rather than 50%.