Calculating weapon damage? (The Elder Scrolls 5: Skyrim)

Hello everyone, I don’t understand how damage from pumped weapons is calculated.

Here I have an ebony ax with a BASE of 17 damage. So, in general, you can squeeze out of it:

17-base damage
100% - improvement from perk pumping one hand for double damage
116% - from 4 items to improve the blacksmith
130% - potion to improve the blacksmith
and the last one (47 * 4 = 188% ) from 4 things to improve the skill of one weapon

TOTAL 17+(17*1)+(17*2.46)+(17*1.88)=34+84+64=108 damage (magic for elemental damage is not taken into account)

I don't I understand where 470-560 damage comes from ???

the same from daedric weapons

daed sword 16*2+(16*2.46)+(16*1.88)=102

And why the hell is 560 damage?