C174 Think about Things from the Point of View of a Guest

"What do you mean, commission?"

The shopkeeper had never heard of such an algorithm. What kind of algorithm was this?

"Take a look. For example, if I order a dish, it will cost one tael of silver, and I want five hundred gold coins as a commission. How about that?"

"What, five hundred?" Impossible, half of the entire dish was taken by you