Recalculate is a function that calculates all the legacy data aligned with the selected rollup.
To use recalculate functionality follow the below steps:
From the PWR Rollups application page, click on the Recalculations tab
Click on New
Select the rollup for which you want to perform the recalculation
You can add filters if you want specific records to be updated
Click on the 'Save & Run' button
Your process will now be initiated and you will see the results on the history window after recalculation process is completed