I have a different kind of question about it.

If you have body armor, regular armor and a magick armor on you, would the percentages for each be based on the original damage, or on what's left after the others reduced the damage?

For example:
If you have BA protecting for 25%
Store bought armor protecting for 40%
Wall protecting for 50%
You get hit for 40 damage

Would you get over 100% protection or would it be 20 points absorbed by the wall, 8 points by the armor and 3 points by the body armor? (think I answered my own question writing it out, but I'll leave it anyway.)