On my Necro/Dark MM on Excelsior (The Grey Ghoul) I have 4 sets of Unbreakable Guard (2 pieces) which should give me -2.5% Endurance Discounts each, but in my Combat Attributes it shows them as -2.43% discounts...and the total END discount doesn't match the sum of the discounts (showing 9.08% instead of the sum 9.72%) nor the correct 10%. Seems like some strange maths going on...