Demi-human, M-size, DMG/M.DMG reduction, Ref. DMG/M.DMG reduction

[cookie.cuttr]

Hi All,
Shot in the dark here.
My Demi-human reduction is 53%, while my M-size reduction is 58%. My DMG reduction is 87.5%, while my Ref. DMG reduction is 45.0%.
How does each work?
Assuming 10M damage during WOE (based completely on neutral physical ATK, no Ref. Atk involved), what would the final damage be?
Thanks to whoever replies, AFAIK there isn't a guide on dmg. reduction out there. PEACE.

[solmi]

All of the above are different multipliers, each is counted separately, some are simpler, some are more complicated. To answer your question, you need to know many other parameters of the source and target. If you want to dive deeper into this, I recommend searching for a YouTube video of the user IdleHands.