According to official website, the elder brother of inquiry method, it is learned that the amount cannot be written in the catering triplicate. The operation is as follows:

Write clearly the customer's name, the time, article number, name and specification of the triplicate receipt, and the unit, quantity, unit price, amount, total amount, ticket filling, payee, accountant and payee of the triplicate receipt. Triplicate refers to one type.