Difference filter instead of calculating differences

Hi Zach,

I found a new solution without changing your data structure. Please download the demo in the attachment. 

1. Create a new table. 

Items	               No.
Widget Margin	        1
Widget Waste	        2
Survey Satisfaction	3
Widgets Produced	4
Meetings	        5
Calls	                6

2. Create two measures.

Current Forecast vs. Prior Forecast New =
SWITCH (
    SELECTEDVALUE ( 'Table3'[No.] ),
    1, CALCULATE (
        SUM ( Table2[Widget Margin] ),
        Table2[Scenario] = "Current Forecast"
    )
        - CALCULATE ( SUM ( Table2[Widget Margin] ), Table2[Scenario] = "Prior Forecast" ),
    2, CALCULATE (
        SUM ( Table2[Widget Waste] ),
        Table2[Scenario] = "Current Forecast"
    )
        - CALCULATE ( SUM ( Table2[Widget Waste] ), Table2[Scenario] = "Prior Forecast" ),
    3, CALCULATE (
        SUM ( Table2[Survey Satisfaction] ),
        Table2[Scenario] = "Current Forecast"
    )
        - CALCULATE (
            SUM ( Table2[Survey Satisfaction] ),
            Table2[Scenario] = "Prior Forecast"
        ),
    4, CALCULATE (
        SUM ( Table2[Widgets Produced] ),
        Table2[Scenario] = "Current Forecast"
    )
        - CALCULATE (
            SUM ( Table2[Widgets Produced] ),
            Table2[Scenario] = "Prior Forecast"
        ),
    5, CALCULATE ( SUM ( Table2[Meetings] ), Table2[Scenario] = "Current Forecast" )
        - CALCULATE ( SUM ( Table2[Meetings] ), Table2[Scenario] = "Prior Forecast" ),
    6, CALCULATE ( SUM ( Table2[Calls] ), Table2[Scenario] = "Current Forecast" )
        - CALCULATE ( SUM ( Table2[Calls] ), Table2[Scenario] = "Prior Forecast" ),
    99999
)

Forecast vs. Plan New =
SWITCH (
    SELECTEDVALUE ( 'Table3'[No.] ),
    1, CALCULATE (
        SUM ( Table2[Widget Margin] ),
        Table2[Scenario] = "Current Forecast"
    )
        - CALCULATE ( SUM ( Table2[Widget Margin] ), Table2[Scenario] = "Plan" ),
    2, CALCULATE (
        SUM ( Table2[Widget Waste] ),
        Table2[Scenario] = "Current Forecast"
    )
        - CALCULATE ( SUM ( Table2[Widget Waste] ), Table2[Scenario] = "Plan" ),
    3, CALCULATE (
        SUM ( Table2[Survey Satisfaction] ),
        Table2[Scenario] = "Current Forecast"
    )
        - CALCULATE ( SUM ( Table2[Survey Satisfaction] ), Table2[Scenario] = "Plan" ),
    4, CALCULATE (
        SUM ( Table2[Widgets Produced] ),
        Table2[Scenario] = "Current Forecast"
    )
        - CALCULATE ( SUM ( Table2[Widgets Produced] ), Table2[Scenario] = "Plan" ),
    5, CALCULATE ( SUM ( Table2[Meetings] ), Table2[Scenario] = "Current Forecast" )
        - CALCULATE ( SUM ( Table2[Meetings] ), Table2[Scenario] = "Plan" ),
    6, CALCULATE ( SUM ( Table2[Calls] ), Table2[Scenario] = "Current Forecast" )
        - CALCULATE ( SUM ( Table2[Calls] ), Table2[Scenario] = "Plan" ),
    99999
)

3. Now you can format the old table as you wish.

Best Regards,
Dale