To control the price of providing an article or service corresponding to the utilization situation of a client who receives the provision of this article or service and to promote the sale of business for selling tat article or providing the service.

This system is provided with an information recording medium 1 to which a managing number is previously applied, a providing device Si for selling the article or providing the service on the basis of this information recording medium 1, an information reading/recording device Ri provided for each providing device Si for reading the managing number of the information recording medium 1 and recording the date/time of a use, the amount of utilization, the width of utilizing time and the kind and item of the article or service, data totalizing means 2 for totalizing the date/time of the use, the width of the utilizing time and the amount of utilization recorded by the information reading/recording device Ri for each information recording medium 1 with the managing number of this information recording medium 1 as a reference and totalizing the kind and item of the article or service, and controller 3 for analyzing the utilizing situation of the client from the result totalized by this data totalizing means 2 and performing control so as to increase/decrease the providing price related to article sale or utilizing time width related to service provision.