Petrified blood explanation?

How does petrified blood works? cuz as i understand it its better to go full life on a all life build?

Is this correct?

If I got 10,000 life and i get hit for 9500 I have 500 life left

1- With PB i got 5000 life and a 9500 hit dmg is= 9500*.6= 5700 Die

2- With PB 5000 life and a 9500 hit dmg is = 9500/2 = 4750*.6 = 2850 2150 left

Is it one of the above or an entirely new way to calculate it?

Ty

No one?

Assuming you're using the level 1 version, option 1 is correct. So PB isn't good against a single big hit, but against multiple small hits it can be good if you can recover faster than the life loss.

It's a huge defensive boost for anyone that can chug health pots to maintain their life (pathfinder). For everyone else, it's a way to get into Low Life status with a much smaller cost.