Right now, every 100 DEX gives you 1% extra physical critrate per Kaioken grade. (And never any energy crit, for some reason?) Even if you had 200 DEX, that'd literally makes the Kaioken stacking pointless.
I think you accidentally added one too many zero's in the dividing process, and I have the feeling you meant to give 10 crit per 100 DEX. Which would be a big nerf for most Kaioken users already. Soooo....was this a hasty miscalculation?