Calculating Difference in dynamic current week vs previous week where values are in %

Lets’ say, this is how my table look like

Week 1 2 3 4 WoW bps
MP
US 99.96% 99.20% 99.76% 99.84% 9 bps
CA 99.94% 99.65% 99.24% 99.32% 9 bps
IN 99.50% 99.40% 99.50% 99.63% 13 bps
BR 99.81% 99.30% 99.50% 99.56% 6 bps

My current week keeps on changing and i want to show only the difference between current week vs previous week (where the values are in %) in bps. These % values are also from a calculated field. Could you please help me create a calculated field for this?

Hi @Samridhi and welcome to the QuickSight community!
Would you be able to share the calculated fields that are being used for your percentage values as well?

Hi Brett,
Thank you!
The percentage values are calculated as : sum(column_name)/sum(column_name)