SWTOR formula list

[Letalis]

I have been trying to match the minimum damage tooltip for the Cauterize ability at level 50 for my Sentinel but cannot match the figure. I am hoping one of you guys can point out where I have gone wrong.

Cauterize tooltip = 687 - 818

MH Min - 302
OH Min (including DW penalty) - 202 (201.96 unrounded)
Bonus Damage = 383.5 (383.46 unrounded)

AmountModifierPercent = 0.6
StandardHealthPercentMax = 0.02
StandardHealth = 1610
Coefficient = 0.2

= (1.6 * 302) + (1.6 * 201.96 * 0.3) + (383.46 * 0.2) + (0.02 * 1610)
= 483.2 + 96.9408 + 76.692 + 32.2
= 689.0328

As you can see, the value is 2 out from the tooltip so something is not quite right.

Any ideas?