tModLoader How to add custom critical percentages

[GenericBauble]

I've been looking everywhere, and every example I could find, but no matter how much code I've stumbled across, no-one put how to add custom critical percentages.
I've watched 4-5 videos and read about 3 weapon creation guides top-to-bottom, and people apparently couldn't be bothered to show how it's done.
It's been 4-5 hours, and for the sake of my sanity I thought I'd post it here... Any help would be REALLY appreciated.

 

[Compa]

Add

item.crit = X;

With X being the crit chance %. Take note that the game gives every item a 4% base crit chance, so the actual crit chance will 4% higher than what you put in. 8 = 12% crit chance. 50 = 54% crit chance, ect.

 

[SebasManzana007]

And how can I put a different critical power?