Since one request in ten gives rise to a complaint, you therefore receive approximately 27,000 requests for access to information. If you divide your $8,181,000 budget by 27,000, you get the cost of dealing with one request or one complaint.
If the number of requests increased by 10%, for example, you would be able to calculate the cost of processing a request based on the increase. Do you understand? It is possible to make such a calculation.