Create one [Show Selection] and add list as Actual and Target.
Create calculation as
case [Target parameter]
when "Actual" then [Actual Value]
when "Target" then [Target Value]
Create 2nd calculation as
case [Actual parameter]
when "Actual" then [Actual Qty]
when "Target" then [Target Qty]
Drag this two calculations into row.
Show parameter and select Actual or target.
if you want to show multi measure in single axis
Drag measure name into column and measure value into row.
Remove other measure and add only calculated data.