Percent Formula as Compared to Seven Days Ago

Summary

Need Column to Compare Last Week to This Week

Content

Hello,

I need to add in a % Change Calculation for each of my measures into a pivot table.. See the attached screenshot with where I would like to add the % Change in. What I've done so far:

- Added SQL onto my analysis to show the last 13 days Only + today. 

- Wrote a Case when formula to group the last 7 days into one column, and days 7-13 into the second column and added this to the "Columns" section of my pivot.  Here is my formula: CASE  WHEN TRUNCATE(TIMESTAMPDIFF(SQL_TSI_DAY,"Submission Dates"."Submission Completed Date",CURRENT_DATE),0) <= 6 THEN 'Current Week'  WHEN TRUNCATE(TIMESTAMPDIFF(SQL_TSI_DAY, "Submission Dates"."Submission Completed Date",CURRENT_DATE),0) < 14 THEN 'Previous Week' END