Formula
CommonFun.calcBuff_6890
function CommonFun.calcBuff_6890(srcUser, targetUser, a, b, c, d, lv, damage)
if srcUser == nil or targetUser == nil then
return 0
end
local HpM = srcUser:GetProperty("Hp")
local MaxHpM = srcUser:GetProperty("MaxHp")
local hpperM = HpM / MaxHpM
local A = math.floor((1 - hpperM) * 10) * 20
return A
end