[GrimTools] Build Calculator

[tqFan]

I’ve made 2 tests already showing Total Damage mods stacks multiplicatively not additively:

• [1.1.9.6] Forcewace Trauma Witchblade: All Celestials + SR90 - 1 million damage internal trauma crits - #18 by tqFan

• Total Damage Stacking

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That means Grim Tools incorrectly displays the following:

for this character Soldier, Level 100 (GD 1.1.9.6) - Grim Dawn Build Calculator

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It should be 252% and total damage mods stack in this way

m1 ⊕ m2 ⊕ m3 ⊕ … ⊕ mn = (1+m1) * (1+m2) * … * (1+mn) - 1

not in the following way

m1 ⊕ m2 ⊕ … ⊕ mn = m1 + m2 + … + mn

Yes, I felt like nerding out a bit.