Accuracy doesn't match tooltip with combat log

[NeV3rKilL]

I have seen that accuracy is different fromn the tooltips and the combat log.

 

In this screen you can see that the Elder Lion has a 47 Accuracy.

 

 

But in the combat log we can see that the real accuracy is 77.

 

 

 

Also I saw that sometimes the trashmobs are doing a lot of damage in a single hits. In that case, lions were doing around 50 damage per hit which is a lot of damage, even when i'm doing no more than 30 damage per hit buffed, but I found that sometimes the lions could hit by 80 damage or even more than 100.