Classic pet exp

[quido]

Ok I'm not reading this entire thread so I apologize if this was already clarified.

Let's say I (a shaman) am duoing with a mage and we both have pets. Say we're fighting a mob that has 2000 hp. Now let's say, just for the sake of an example, that the mage pet does a total of 1500 damage but the mage reclaims him before the mob dies. Furthermore, the remaining 500 damage is split between my pet and I; he does 300, and I do 200. How does this break down?

Does the 1500 damage done by the reclaimed pet not count towards the mob's total life, in which case my pet will have outdamaged me (and us) and consequently stolen some exp? Or does credit for that 1500 damage transfer to the mage once his pet is reclaimed?

Someone explain this to me please.