How does downscale work?

[LIFE_OF_KING]

For example, character X is defeated by a 50 tons attack, yet he still remains conscious, alive and without much visible damage

This character scales to what? 20, 30, 40 tons?

An example

 

[Theendzero13]

I think it is case by case TBH

 

[LordGriffin1000]

It's a case by case thing but if they still survive the attack without being to injured, the Durability would just be unquantifiably lower than 50 tons. We'd put them close to that Tier as well.