An information processing apparatus according to this invention acquires function restriction information used to restrict the use of functions of an image processing apparatus. The apparatus acquires job log data of a job which is processed using the functions of the image processing apparatus. The apparatus changes the acquired function restriction information. The apparatus calculates a cost incurred upon using the functions of the image processing apparatus within a designated period, based on unit price information indicating the unit prices of the resources consumed upon using the functions of the image processing apparatus, the job log data, and the changed function restriction information. The apparatus outputs the calculation result.