Refund

Refund is a badge that appears in the Paper Mario series.

In Paper Mario, this badge appears in Koopa Bros. Fortress. This badge can be obtained in Bombette is in the crew. In the eastern tower or the fortress, Bombette can blow up a badge and reveal a path leading outside. Outside is this badge, it is inside of the treasure chest. This is a very helpful badge if you want to keep money. The BP cost of this badge is only 1 too.

Every time, as long as this badge is equipped, Mario uses an item, he gains coins equal to 1/2 of the sale value at the highest point. Meaning a mushroom, let's just say, went for sale at Lavalava Island 's shop for 10 coins and it was the highest sell value for it the game, Mario would get 5 coins when he uses this item. This effect does not work in the field but works for every item in battle.

Paper Mario: The Thousand-Year Door
In TTYD, Refund gives Mario a better deal but cannot be obtained until a little later in the game. This badge is found in the Pianta Parlor. It is here, this badge is priced for 34 Piantas. This badge still costs 1 BP and gives Mario money every time he uses an item in battle. The money Mario gets now is 75% of the price rather than the 1/2 from last time. This effect increases with more Refund Badges equipped. This increase is only another 5% but with enough of these badges, Mario can make an extreme profit.