Talk:Parameter Bonus/@comment-68.2.29.143-20140705082124/@comment-5264386-20140705084247

Each scaling letter represents a range of values, so it'll be hard to determine the exact scaling percentage from pure estimation. Anyway, just to recap, the formula for AttackRating in this particular scenario is: $$AR = BD * (1 + DexSC * DexSR) * (1 + StrSC * StrSR)$$, where:
 * AR is Attack Rating, the total attack value before defences
 * BD is the Base Damage of the weapon
 * SC is the scaling rank of the weapon
 * SR is the scaling rank of a particular stat

Anyway, I'd estimate the StrSC at 33% and the DexSC at 66%. Since your Dexterity and Strength both equal 25, they both have an SR of approximately 51.25 (0.513). The Halberd also has a Base Damage of 220. Thus, inputting the numbers gives us: AR = 220 * (1 + 0.66 * 0.513) * (1 + 0.33 * 0.513) = 344.34

As a result, I'd estimate that your Halberd +10 would have around 344 attack.