| 摘要 |
PROBLEM TO BE SOLVED: To make maintenance of a commodity information table unnecessary even when commodity information such as price changes every time contents of a menu commodities changes in accordance with the period of term. SOLUTION: At least one code out of plural commodity identification codes is made to be a code for an abstract menu commodity in which contents of the commodity to be provided are different from term to term. When the commodity identification code inputted by way of an input part is for the abstract menu commodity, the commodity identification code for the commodity which is allocated to the code for the abstract menu commodity concerned at present is acquired, commodity information such as a corresponding merchandise name or a price is read by retrieving the commodity information table by this commodity identification code, the amount of proceeds of an ordered commodity is calculated from the price of the read commodity information and the number of orders, and an output part is made to visualize and output the commodity name, the number of orders, the sales amount and the like of the ordered commodity. |
