Dynamic Formatting + Calculation Group + Slicer Using Parameter Table Pattern for Different Measure

Hello All,

Looking to apply some dynamic formatting to a visual that uses a calculation group to show current-year, prior-year and prior-prior-year... This visual changes measures via a slicer using a parameter table pattern (aka SWITCH function) — In the images below, when I select Retail GP I want the results to be formatted as a number, but when I select Margin I would like the results formatted as a percent.

Hoping the community can help me out! Thanks!

(Still new to posting here so thank you for helping me with proper naming conventions and descriptions!)

Sample DAX formula + Data Results: Need Margin to be a PERCENT when I select "Retail Margin" in the slicer

GP formatted as expectedMargin needs to be a percent