Unpivot Columns of Calculated Table

UBComma , A new table like

Union (
Summarize( Data, Data[Fall Year], "Data", [Total UG], "Scenario", "FY+50NotCL", "Value", Sum(Data[FY+50NotCL])),
Summarize( Data, Data[Fall Year], "Data", [Total UG], "Scenario", "FY+35NotCL", "Value", Sum(Data[FY+35NotCL])),
Summarize( Data, Data[Fall Year], "Data", [Total UG], "Scenario", "2FY+50NotCL", "Value", Sum(Data[2FY+50NotCL])) ,
Summarize( Data, Data[Fall Year], "Data", [Total UG], "Scenario", "2FY+35NotCL", "Value", Sum(Data[2FY+35NotCL]))
)

you can use selectcolumns in place of summarize

https://docs.microsoft.com/en-us/dax/selectcolumns-function-dax

https://radacad.com/create-a-subset-of-the-table-in-power-bi-and-add-calculations-using-selectcolumns-dax-function

Also refer

https://www.sqlbi.com/articles/from-sql-to-dax-joining-tables/

HI UBComma 
Here is sample file with the solution https://www.dropbox.com/t/Ya51y92MbC5Y8Wwd

Unpivotted Table = 
UNION (
    SUMMARIZE ( Data, Data[Fall Year], "Total UG", MAX ( Data[Total UG] ), "Scenario", "[FY+50NotCL]", "Bed Count", MAX ( Data[FY+50NotCL] ) ),
    SUMMARIZE ( Data, Data[Fall Year], "Total UG", MAX ( Data[Total UG] ), "Scenario", "[FY+35NotCL]", "Bed Count", MAX ( Data[FY+35NotCL] ) ),
    SUMMARIZE ( Data, Data[Fall Year], "Total UG", MAX ( Data[Total UG] ), "Scenario", "[2Y+50NotCL]", "Bed Count", MAX ( Data[2Y+50NotCL] ) ),
    SUMMARIZE ( Data, Data[Fall Year], "Total UG", MAX ( Data[Total UG] ), "Scenario", "[2Y+35NotCL]", "Bed Count", MAX ( Data[2Y+35NotCL] ) )
)