Amount

<Player>

• Player whose inventory items' NBT will be edited.

• Supports a few vanilla selectors.

• [1.6.5] May be an Entity (dropped item) UUID

<Slot>

• The slot in the player's inventory in which items will be duped or consumed. To read on slots see Inventory Slots.

• Examples: mainhand, offhand, chest, feet, any, 0-8, ec*

[±]<value>[%]

• The operation to apply to the damage of the item. See Plus Minus Percent page for full explanation.

[Objective]

• The name of the scoreboard objective that will store (ten times) the final amount.

• Max stack size using this command seems to be 127

• You can read the amount of items in that slot by using +0

  • This will set the score of the player to 10 times this amount

  • Unlike testinventory with amount keyword, which will not multiply by 10.