Azure Backup uses Protected Instances as the unit for billing customers for the Backup Software management. Additionally, all Backup Storage gets billed at Block Blob storage rates. Details are available at: http://azure.microsoft.com/en-us/pricing/details/backup.
Questions that are frequently asked about the pricing are:
1. What is a protected instance? How do I calculate the number of instances I have?
2. How do I estimate the amount of Azure storage my backups will consume?
Some of these are answered in the FAQ on the pricing page. Helping you estimate the Azure Backup bill is the purpose of this excel sheet.
You use a script on the DPM server to estimate the Protected Instances and the Backup storage. Download the script from here: https://gallery.technet.microsoft.com/Estimating-Azure-Backup-e0d4abbc/
Reach out to us via the Azure Backup forums: http://aka.ms/azurebackup_forum or use the Q&A tab in this gallery submission.
You can find our more about Azure Backup from here: http://aka.ms/azurebackup_landingpage. Follow us on Twitter @AzureBackup (http://twitter.com/azurebackup) and watch video tutorials on Channel9 (http://channel9.msdn.com/Series/Azure-Backup).
Contribute to improving Azure Backup by submitting ideas and suggestions for improvement: http://aka.ms/azurebackup_feedback.