pls give the script of this spiral pierce item bonus

[Dev Kaayla]

 Increase Damage of Spiral Pierce Skill by 500% 
----------->Damage is gained by 1% increase in Spiral Pierce Skill damage for every level after 200<-----------------

[Emistry]

bonus2 bSkillAtk, "LK_SPIRALPIERCE", 500 + max(0, (BaseLevel - 200));