P.critical Damage / P.SKILL critical Damage

Hi daggers, do the critical damage boosts from AQ , Baium , Augmentation or others affect the P.SKILL critical Damage too ?
And about P.SKILL critical rate, the skill passive from light armor increase this rate influenced by DEX stat, new SA can increase this rate and augmentation too, but there is no any stat or visible thing to know this rate, do there is a max rate for P.SKILL critical rate?? And how to know??
Thanks for your constructive answers!

P.critical Damage / P.SKILL critical Damage