ramansingh89 - This is more of a "function" related question than a BloX one. Have you tried using the DiffPastPeriod function to calculate the difference from the last period and the "period" context is grabbed from the slicer or the filter 's date granularity. If you filter for last month, then the function assigns "Month" to the date context and does a "DiffPastMonth".
Hope this helps. If you still need help on this one, please reach out to your Customer Success Manager and they can get you in touch with the FES team of Sisense who can help you to implement this.
Stay Healthy,
Gowtham Senthilkumar
