Pet damage being weird.
you proberly want to look up something called (skill-specific coefficient)
Skill coefficient: Every skill has a unique coefficient used to calculate damage inflicted. Listed by the () after tool tip listed on wiki pages, not shown in-game however.
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The damage actually done will not correspond to the tooltip damage, since it depends on your opponents Armor value and other factors listed above
http://wiki.guildwars2.com/wiki/Damage have a look at this page it will help explain
^^^^^^^^^Is not the answer
There is a bug that uses your stats to calculate damage shown on pet-skill tooltip
^^^^^^^^^Is not the answer
There is a bug that uses your stats to calculate damage shown on pet-skill tooltip
Well both anwsers are right no physical damage skill will do what it say on the tooltip for players either since they are all affected by your opponents armor etc.