Damage Formula Thread

[EasymodeX]

What I deem the most important step currently is determining whether it's:

HP=floor(3%±RHP),
HP=floor(3%±floor(RHP)),
HP=floor(3%±round(RHP)),
HP=round(3%±RHP),
HP=round(3%±floor(RHP)), or
HP=round(3%±round(RHP))

Where the heck is the 3% stuff coming from?

Healers are weird .