摘要 |
Disclosed is a billing system that charges resource users for the utilization of a shared resource. The billing system acquires data representing a resource utilization rate at intervals, calculates a utilization rate difference between the acquired resource utilization rate and a reference (average) resource utilization rate, and substitutes the utilization rate difference for the argument of a predetermined math function, such as linear function, to produce a collective adjustment payment (surcharge or discount). Individual adjustment payments are obtained from the collective adjustment payment respectively for resource users.
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