New Power Guard Numbers

I remember, when playing my Crusader in GMS, that with Power Guard, you would deal 100ish damage if the monster hit you for 200 ~ 300 damage. At least, that's how I remember it being, though I may be wrong. Well, I decided to take a look at how Power Guard works now in KMST and this is what I came up with :

 Spoiler

It seems like it reflects exactly half of the damage now at a 99% accuracy (not as in MISS/Hit, but as in the numbers that show up). Pretty interesting stuff. I wonder how this works elsewhere.