All my prior statements that a 5-10% INCREASE being noticeable are consistent with using the increase in damage taken. If you want to talk reduction percentage, I would need to adjust the 5-10% number and get the same result as using my number in the first place. (so arguing about 34% vs 56% doesn't serve any purpose --> they are both correct and none of them invalidate or adjust anything I have said.)
You have now proven that we can say 36% reduction or 56% increase, but not why calling it a 3.4% difference was appropriate or why complaining about why saying 8.4% is greater than either of these numbers was appropriate. You have some more explaining to do.