Talk:Damage 1.0/Electrical Damage/@comment-72.220.220.245-20130705054407/@comment-10743657-20130711161556

It's calculated off the weapon's base damage, or if you have a damage mod (Serration, Point Blank, Hornet Strike, Pressure Point), it calculates it off the base damage * the damage mod. Of course you also have to take into account the enemy's resistances or vulnerabilities.

See this aticle, as it's already explained there: http://warframe.wikia.com/wiki/Elemental_Damage