Board Thread:Game discussion/@comment-4726614-20130404050044/@comment-6016076-20140330225438

Hmm I didn't think of the possiblity it could be like that. That would be crazy as hell if the armor amount reduced by % reduction were first subtracted exclusively from bonus armor.

However, the issue remains that 54.64 in your Garen example is being rounded down, while in Shen's case (if we use the true values), we have a clear example that the coding will round up. That suggests that the base and bonus are affected equally by % reduction.

As far as S3 vs. S4, I am skeptical something like this would have been changed. I did cross check your numbers with the patches from the time you posted, and they all seem correct. Quite frankly, I can't justify Garen's numbers without assuming his W passive is bugged and inactive. I guess if the game didn't track decimal places, rounding to a whole number at each step of the calculation, then it would work out.

Definitely need to just run some tests with a BC on a level 18 Garen once with a cloth armor, once with Ninja Tabi, and once with 2 Thornmails.

And then repeat it with a BC + LW.