Formula
CommonFun.calcBuff_6470
function CommonFun.calcBuff_6470(srcUser, targetUser, a, b, c, d, lv)
if srcUser == nil or targetUser == nil then
return 0
end
local skilllv_1 = srcUser:GetLernedSkillLevel(a)
local Sp = targetUser:GetProperty("Sp")
local A = -skilllv_1 * b / 100 * Sp
return A
end