Loss is calculated in anyhow. Unless they go out of their way there's no way to know what caused it - shoplifting, breakage, employees making themselves feel slightly better about their abysmal working conditions...

Except for that one overzealous middle-manager who will immediately get irate as if you had insulted them personally, as they demand you go back to the register so an underpiad cashier can embarrassingly ring up every item so they know exactly how much you stole, and finish by entering your face into a 3rd party database that will flag you every time you walk in any other store that also utilizes this database.