Some skill-coefficients per second:
Mesmer GS #1: 0.675 (>900 range)
pZerker: 0.4167
Mesmer Sword #1: 0.96 (w/o boon)
Mesmer Sword blurred frenzy: 1.2632
pSwordsman: 0.4255
Ranger Longbow #1: 0.9 (>1000)
Ele LH #1: 1.4286
Warrior Axe #1: 1.4583
Necro Dagger #1: 1.3659
Damage = Weapon strength * Power * Skill coefficient / Armor
http://wiki.guildwars2.com/wiki/Guild_Wars_2_Wiki:Damage_calculation