Originally Posted by
rawi
It's approximately 2.5% buff overall..
Let's say your pet does roughly 40% of your damage in any encounter, your main pet, the one you have named and tamed, hati and dire beasts are not affected.
Your main pet does 100dps, the old combat experience buffed it with 50%, that makes it 150dps, the new one is 60% which makes it 160dps, that's an 6.66% increase to your main pets overall damage, and the 40% multiplied with 6.66% ends up in 2.664% of total increase. This value varies a little from encounter to another, but it's close to 40%. Repeating myself, only your mainpet, not Hati, not Dire Beasts.