| 摘要 |
According to one embodiment, a search unit searches a data file storing article information, and acquires article information corresponding to the article code inputted by a input unit. A storage unit stores a first transaction number indicating a first transaction and article information about the first transaction, a second transaction number indicating a second transaction after the first transaction and article information about the second transaction, and a third transaction number indicating a third transaction after the second transaction and article information about the third transaction. A display unit displays the transaction number of and a total amount for the first transaction, the transaction number of and a total amount for the second transaction, and the transaction number of and a total amount for the third transaction that are stored in the storage unit at the same time, in one display area.
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