Looking for someone who has good knowledge of maths behind gold efficiency and items.

Hi,

I want to make a suggestion about thornmail but I'm looking for ppl with decent understanding about maths behind price of the items to check my suggestion before posting something shitty. I don't really know where to post this so here I am.

Preliminar thought :

1°) : 2600 ( 600 gold). : 1000 gold. : 1000 gold.

55 armor <<< 80 armor 400 hp <<< 250 hp THORNS: Upon being hit by a basic attack, reflects 27,5 (+ 10% bonus armor) magic damage. Grievous Wounds : Grievous Wounds on the attacker for 1 second.

2°) : 3300 (500 gold). : 1000 gold. : 1000 gold. : 800 gold

80 armor 400 hp <<< 250 hp THORNS: Upon being hit by a basic attack, reflects 25 (+ 10% bonus armor) magic damage. Grievous Wounds : Grievous Wounds on the attacker for 1 second.

3°) : 2900 ( 600 gold) : 1000 gold. : 1000 gold. : 300 gold

60 armor <<< 80 armor 400 hp <<< 250 hp THORNS: Upon being hit by a basic attack, reflects 26 (+ 10% bonus armor) magic damage. Grievous Wounds : Grievous Wounds on the attacker for 1 second.

Thanks,