From Brotato Wiki
Item
Recycling Machine is an in-game item that can be bought from Shop or can be found in a Crate. Most Items increase the Stats of the player while some of them provide unique effects.
Unique
Recycling Machine is a unique item. Unique items can only be bought or found once per run.
Recycling Machine
You can recycle your Weapons and Items found in Crates to get a percentage of their value back, at the cost of losing the item or weapon.
The Default is to get 25% back when recycling. Recycling Machine can increase this value by 35% for a total of 60% back.
This stacks with the +25% from Entrepreneur for a total of 85%. Rewards for recycling are based upon the current price of the item, so it increases with inflation, but decreases if you have coupons, since it scales with your shop price secondary stat.