function readOnly(count){ }
Starting November 20, the site will be set to read-only. On December 4, 2023,
forum discussions will move to the Trailblazer Community.
+ Start a Discussion
Christopher TaylorChristopher Taylor 

PREVGROUP VAL Looping to Groupings not Under Parent Group

I am using PREVGROUPVAL to calculate YoY change by month (Sales in january 17' vs Sales in January 18).  It works fine, but it is assigning a value to February and March of 17' by comparing it to January and February of 18'.  It should leave these blank.  See attached image.  I need this comparison only to compare values within the parent group (Month in this case).  I have the report grouped as follows

Created Date: Month In Year
----User-added imageCreated Date: Year