My friend runs a hotel and asked me to open a convenience store in his hotel. I am also in charge of the guest room items. But now I don't know what to do.

The goods in your guest room are really messy. Generally, just go to the housekeeping center to check. Just check the quantity and sales volume every month. General room service personnel are assigned to rooms, and they are also people who make rounds. If you don't see any consumer goods during the rounds, it will be regarded as guest consumption. After receiving the money from the guests, I give so many goods to the room service center every month. If it is less, insiders will make up the money. It is normal that the figures are wrong. As long as someone pays, you won't lose. The person who fills in the money will also help you later.