Hi @Binod Maharjan Thank you for reaching out to us on Microsoft Q&A platform!
My understanding from the details you shared above is that, you noticed high churn rate and wanted to understand ASR replication to relate with cost for high bandwidth and data transfer. Am afraid to say, We don’t have a way for Azure to Azure to check daily churn, you can check metrics of Virtual Machine - https://learn.microsoft.com/en-in/azure/site-recovery/monitoring-high-churn and then compare it with the outgoing churn. Check if you have SQL servers which might be transferring all the transactions. You can reach out to Azure technical support team who can help you with a table for churn. Or you can check this with Azure Monitoring but that needs to be enabled. For details refer to - https://learn.microsoft.com/en-in/azure/site-recovery/monitor-log-analytics
Hope this helps. Please reply if you have any questions or need further assistance!
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