How is the Average Billing amount determined?
First, we add your current bill amount to the previous 11 months’ bill amounts for your service address. We then take that total and divide the amount by 12 (or by the total months available for your service address). Finally, we add or subtract 1/12 of your Deferred Balance, which is the cumulative difference between your monthly Average Billing amount and your actual bill. If there is no previous billing in your name at the service address, or you do not have 11 months bill amounts at the service address, we will take the previous usage at that service address and apply your current price to calculate your average monthly amount.