PROBLEM TO BE SOLVED: To solve the problem that it is difficult to compare demand values of the respective demand periods of the respective days with demand values of a plurality of other days while grasping the demand values of the respective demand periods of the respective days in a prior art.SOLUTION: There is provided a demand calendar and the like, in which one electricity charge demanding period is settled in one sheet, is made to occupy a fixed section from the first day to the last day of the same period by unit of day, sections of the respective days of the same week are arranged in the horizontal direction from the left to the right, sections of the respective days of the same day of the week are arranged in the vertical direction in line from the top to the bottom, which has: time axes to be arranged by time course going from the left toward the right so as to be scales at the same time of the same day of the week in sections of the respective days when it is viewed in the vertical direction as horizontal axes of sections of the respective days; demand value axes to be arranged so as to be scales of the same demand values in sections of the respective days of the same week when it is viewed in the horizontal direction; and a demand value instruction which instructs demand values of respective demand periods according to the scales of the respective axes in sections of the respective days.
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