Hi Geetha,
Welcome to the Quick Sight community.
Are you looking to calculate training twelve month calculation. Can you please elaborate on requirement with example dataset/output. You can also reference prior question in community on TTM topic. Count of Trailing Twelve Months - On Filter
Quick Sight Arena QuickSight Arena -- An embedded instance of QuickSight within the Community can help you to share mock dataset and analysis if you can share an example with us.
Regards,
Anwar Ali