Priority Pass - International Lounge

Hi,

My query is : I’m taking a trip internationally and have HDFC Regalia Gold CC. What are the charges that are deducted while using it in the International lounge of home country?

Also, when I use Priority Pass in the international lounges of the country I’m traveling to, how much charges are deducted?

Lastly, do we have to set up a PIN for Priority Pass separately?