Formula
CommonFun.calcBuff_7500
function CommonFun.calcBuff_7500(srcUser, targetUser, a, b, c, d, lv)
if srcUser == nil or targetUser == nil then
return 0
end
local skilllv_1 = srcUser:GetLernedSkillLevel(1476_GUILLOTINE_CROSS:IMPROVE_CONCENTRATION)
local A = skilllv_1 * a + b
if skilllv_1 <= 10 then
A = 0
end
return A
end