Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - Enhanced Edition Mechanics- Armour Rating Formula

I found that the old formula to calculate Damage Reduction is: "proportion blocked = armour rating / ((4.5 * (1 + attacker level)) + armour rating)" in the game's wikia. But in the Enhanced Edition the formula was changed, right? So what is the new formula to find Damage Reduction based on Armour Rating and Attacker Level?
(I'm desperate to know)