I wan't to make it so that the less blood you have, the less damage you deal. If your blood is at 100%, you deal normaI damage. I was thinking of using a percentage to do this.
I was thinking of something like this.
Humanoid:TakeDamage(dmg / %ofblood)
but honestly I don't know how i'd be able to do this. %ofblood would be the current percentage of blood you have, like 20% or 50% of 100%, and dmg would be the damage, humanoid is the player your hitting.
Any and all help is appreciated!

3 comments
I'll test this right now, if it works, i'll happily accept your answer! :)
Give me awhile to fully set it up(my damage system is more complex then you might think). If it doesn't work, i'll let you know with an additional comment.
Accepted, sorry for taking so long.