breakage
noun
Definitions
The act of breaking.
Something that has been broken.
Example: At the end of the party, there were two reported breakages.
A service which is unused by a customer, such as an unredeemed gift card, which therefore represents a pure profit to the seller.
The left-over money in a parimutuel betting pool resulting from rounding off the payoffs, added to the pool for the next race or event or kept as profit.