Current Life Reduction = (1 - Life Reduction Resist) * (1 - Vitality Resist)
Example - 80% Vit Res, 20% Life Reduction Res
(1-0.2 = 0.8) * (1-0.8 = 0.2) = 0.16 Multiplier for Current Life Reduction. So if you’re then hit by an attack that reduces your Current Life by 33%, you take
0.16 * 0.33 = 0.0528 or 5.28% of your Current Life as damage.
Amending this to say it may not have been korsar - I don’t recall who it was and searching through korsar’s posts didn’t turn up anything. All I remember is the quote:
“Result: Ceno was right (f**k)”
Which I haven’t been able to find since last having this discussion.