Does Basedef reroll by upping armor?

Sup Dudes,

the question is in the headline.
Does the baseitem defense reroll when im upping an item?
Like if i up my

Eth

Skullder's Ire with f.e. 225 Base def +x% ed.
Is the defense on the

Balrog Skin also the lowest possible roll (410 base def), or is it at complete rng and i can roll it up to maybe 517 (top) basedef?

Would appreciate answers.
Thanks,
Dera

afaik Uniques with +ed% always have highest base def, so skullders alwas has 243 (highest

Russet Armor) and then the variation comes from 160-200%ed. When upping though, this does not apply and you can get a

Balrog Skin with 410 base def.

My upped

Goldwrap as an example! No longer maximum armor value x 52% edef.

I believe, out of the 37-42 (for a

Battle Belt) range, I got 40?

(40 * 1.52) + 25 = 85.8

I don't remember how rounding goes, but I'm pretty sure the decimal is dropped.