[Kaphotics]

BW Battle RNG p6

Damage Random Value / Damage Variation
R = ((SEED>>32)*16>>32 == (0-15)

Inversely related to 85-100, 
  whereas 0 --> 100% damage
  and    15 -->  85% damage

This is not what the onsite article says about battle damage chances. Even though it was written for D/P, I find it difficult to believe this aspect of the article to be correct.

Gen 3's Damage Random Value was calculated as follows, which is documented by FractalFusion here.

In battle: Damage variation
For almost all attacks, the amount of damage that an attack does varies
between about 85% and 100%. The game determines damage variation 
three frames after it checks for critical hit.
When the game rolls for damage variation, the game will cycle the 
RNG 3 times on that frame.

  xxxxxxxx
  xxxxxxxx
  xxxaxxxx    Damage variation, max: a==0   min: a==15
The lower the number, the more damage the attack does.

my test pad

---

I spat out random numbers from frame 2 of the seed (Crit->Damage), and added 85 to the calc shown above.
I also did the same, but instead spat out numbers 85-100 with the article's method.

This only has to make sense for me. (It shows that the higher the number, the less damage it deals). Going back to my calc (before the +85), the lower the number, the more damage it deals.

Initial Seed
D196918F998EDAF9

Deerling attacks!	Breloom
33 Atk			1 Defense
26 SpA			999 HP
Faint Attack used.	Revive used (to no effect).

CBC8A8D6B8DE8B26 ==> 89  for both
790 HP Remained

B4DC555B11814400 ==> 90  for both
792 HP Remained

D196918F998EDAF9 ==> 92  for both
796 HP Remained

7D674084F18A72C3 ==> 100 for both
814 HP Remained

923DDE8F 3EA5A594 ==> 97  for both
807 HP Remained

#	Theory	Tested
89		790
90		792
91		794
92		796

93	799
94	801
95	803
96	805
97		807
98	810
99	812
100	814

64CCFE6D DE74DAC1	==>	91 on mine, 90 on "DP"
794 HP Remained