Kaiser's % ATK buff

My bad. fmoaingfdiandgfn It's too early for me.

+10 MATK from Spell Mastery
+100% MATK from 3 orbs on Bless of Darkness
+30 MATK from Magic Mastery

Black Blessing is off, so that is discounted, but I do account for the rest.

After correcting a mistake I had (I was accounting for 5% damage from Affinity, but that is only applied to light.dark spells and not to range), I discover that I am EXACTLY off by 20% Total Damage. I don't know where this is coming from.

If I make the Shining Rod multiplier be 1.2, I get the right number (or if I use a 20% Total Damage bonus I get the perfect number also.)

The Luminous passives that I am accounting for are -
Inner Light (20 INT)
affinity (no effect on range, but considered)
Black Blessing (not active so no effect on range)
Spell Mastery (10 MA)
High Wisdom (40 INT)
Magic Mastery (30 MA)
Hyper Int (50 int)

My INT and LUK match my displayed totals (base and bonus accounted separately). My total MA calcs like this -
Weapon - 23
Will of the Alliance - 5
Empress blessing - 26
Spell Mastery - 10
Magic Mastery - 30

Total - 94

Formula for my range: 1* ((4*982)+28) * (94/100)) = 3718
20% Total Damage added = 4462 (matches my displayed range)

So, I am off exactly 20%. This makes me think I am missing a skill in my calculation somewhere (or the Rod multiplier is 1.2).