Question : In 2013, several data server companies took a dramatic decision to begin using energy surcharges to recapture rising energy costs.

Question: In 2013, several data server companies took a dramatic decision to begin using energy surcharges to recapture rising energy costs. However, customers are critical of how the energy surcharges are being allocated. Specifically, the data server companies allocate costs based on bandwidth available to customers. Customers however prefer allocations to be based on actual usage metrics such as data-bytes transferred or data-stored in servers. The US Department of Energy has hired your team to provide a recommendation on the allocation. How would you allocate and provide an illustrative example.

Note : I was going to say that it would be best to allocate costs by the amount of bytes used by customers, but I am unsure of how to illustrate and express an appropriate example proving this. Could you help with a good solid example?