[nicoburns]

The idea is to do a discount towards the end of the day to help clear stock that would otherwise go to waste because it has a short shelf life. Supermarkets do this all the time, but it generally involves an employee going around manually relabelling produce.

[Semiapies]

Or more likely in many cases, putting up temporary discount signs to be collected at the end of the day.

Still a time-saver to automate.