Margin is the difference between the charged amount (what accounts within a billing group are shown) and the actual AWS costs for the same set of accounts. Margin is shown from a month-to-date view on the dashboard, and in the margin analysis section of the AWS Billing Conductor console. If you are not interested in retaining margin, you can also use the margin calculation to determine the appropriate amount of “unallocated savings” which you can apply to your billing groups at your discretion.