Talk:Mods 2.0/@comment-69.244.43.184-20130626035543/@comment-7700557-20130627213227

Basically, yes. The interesting part is, if you have a mod increasing the base damage for your weapon, then the elemental extra is supposed to be calculated from the modified base. With your previous example:

100 base damage; 15% elemental fire; 20% extra base damage = (100*(1+0.2))*(1+0.15) = 100 base + 20 extra + 18 fire

I haven't personally tested this.