Collection of short message cards

Q:

The salad bar, which is served during certain hours, is supposed to be weighed on a scale installed at the register, but I'm wondering why there's a weight-like object on the scale that's "set to the weight of a plate." Does this mean that the object is the same weight as a single plate? If so, the object should be placed on the scale, the scale should be set to zero, and then the object should be removed from the scale and weighed.
I'd appreciate an answer as to what the object's intended purpose is.

A:

Regarding your inquiry, we sincerely apologize for our lack of explanation.
The salad bar scale at the register is set to weigh up to three plates at a time, subtracting the weight of three plates from the scale for ease of operation. Therefore, if you order one or two plates, we place a weight equivalent to the number of plates on top to measure the weight. We sincerely apologize for our lack of explanation. We have added an explanation to the scale at the register, as shown in the attached photo. We appreciate your continued support.