Armor Durability?

if you see where it says max damage armor absorbs this is what you need to set also notice the info it reads it multiplies the number that it's set to by x.

The durability calculations are wrong

I'm pretty sure they're right. It's measured by an armor point (half of the chestplate symbol)

I think that the infobox next to the option on damage value that armor absorbs are only exchanged that makes them partly wrong. Because on minecraft wiki a diamond helmet has a durability of 363 but by the numbers given it would be 

          helmet: max_damage_absorbed * 13

          inserting vanilla factors (Diamond armor: 33):

          helmet: 33 * 13 = 429 Durability for boots according to this method.

The helmet multiplier is just swapped with the boots multiplier as well as leggins with chestplate.

Because:

          boots: max_damage_absorbed * 11

          inserting vanilla factors (Diamond armor: 33):

          boots: 33 * 11 = 363 which is in the minecraft wiki the durability for diamond helmets.

 Therefore it is not that big of a deal because you will just need to be aware of it.

Here are even the right multipliers: https://mcreator.net/wiki/how-make-armor