Parameter Reduction

Parameter Reduction (commonly referred to as Stat Reduction or Stat Down) is a debuff that decreases a certain stat(s) of the designated target. Similar to how stat calculations work, parameter reductions are subtractive with each other along with stat boosts.
This debuff can stack additively with Parameter Reduction Added to Attack.
Status Cleanse can cleanse all Parameter Reduction debuffs.
Status Negation cannot negate Parameter Reduction debuffs.
==Examples==
*A unit with a 180% Atk buff and a 50% Atk Down debuff will result in a 130% boost to Atk.
*A unit with a 180% Atk buff, a 50% Atk Down debuff, and a 30% Atk Down debuff from added Atk reduction to attack, will result in a 100% boost to Atk.
==In-Game Descriptions==
Buff 	Namespaced ID 	In-Game Description
Atk Down 	DESC_BUFF_ATKDOWN 	Attack decreases.
Def Down 	DESC_BUFF_DEFDOWN 	Defense decreases.
Rec Down 	DESC_BUFF_RECDOWN 	Recovery decreases.
Fire Atk Down 	DESC_BUFF_FIREATKDOWN 	Decreases Attack for Fire types.
Fire Def Down 	DESC_BUFF_FIREDEFDOWN 	Decreases Defense for Fire types.
Fire Rec Down 	DESC_BUFF_FIRERECDOWN 	Decreases Recovery for Fire types.
Water Atk Down 	DESC_BUFF_WATERATKDOWN 	Decreases Attack for Water types.
Water Def Down 	DESC_BUFF_WATERDEFDOWN 	Decreases Defense for Water types.
Water Rec Down 	DESC_BUFF_WATERRECDOWN 	Decreases Recovery for Water types.
Earth Atk Down 	DESC_BUFF_EARTHATKDOWN 	Decreases Attack for Earth types.
Earth Def Down 	DESC_BUFF_EARTHDEFDOWN 	Decreases Defense for Earth types.
Earth Rec Down 	DESC_BUFF_EARTHRECDOWN 	Decreases Recovery for Earth types.
Thunder Atk Down	DESC_BUFF_THUNDERATKDOWN	Decreases Attack for Thunder types.
Thunder Def Down	DESC_BUFF_THUNDERDEFDOWN	Decreases Defense for Thunder types.
Thunder Rec Down	DESC_BUFF_THUNDERRECDOWN	Decreases Recovery for Thunder types.
Light Atk Down 	DESC_BUFF_LIGHTATKDOWN 	Decreases Attack for Light types.
Light Def Down 	DESC_BUFF_LIGHTDEFDOWN 	Decreases Defense for Light types.
Light Rec Down 	DESC_BUFF_LIGHTRECDOWN 	Decreases Recovery for Light types.
Dark Atk Down 	DESC_BUFF_DARKATKDOWN 	Decreases Attack for Dark types.
Dark Def Down 	DESC_BUFF_DARKDEFDOWN 	Decreases Defense for Dark types.
Dark Rec Down 	DESC_BUFF_DARKRECDOWN 	Decreases Recovery for Dark types.