Dynamic display inventory value for Past N period based on selected slicers value

[tonny_bwg]

Hi, Gurus
 I want to create a report to dynamicly show inventory value based on slicers select. 
for example: currently Month and 202307 are selected. Parameter sets to 5, the chart will show the inventory value from 202302 to 202307.  Quater and Year are the same logic.  how to create a dynamic inventory value measure to switch to difference value accoring to the selection.
thanks for your help.

--Tonny

Date slicers DAX:

dim_Date3 =

 VAR _t1 =

        SELECTCOLUMNS(dim_Date,

                      "Date", [Date],

                      "Display", [Year],

                      "Sequence", [ySequence],

                      "Type", "Year",

                      "TypeId",3)

 VAR  _t2 =

        SELECTCOLUMNS(dim_Date,

                      "Date", [Date],

                      "Display", [Year]&[Quarter],

                      "Sequence", [qSequence],

                      "Type", "Quarter",

                      "TypeID",2)

 VAR _t3 =

      SELECTCOLUMNS(dim_Date,

                      "Date", [Date],

                      "Display", [YearMonth],

                      "Sequence", [mSequence],

                      "Type", "Month",

                      "TypeID",1)

 Return

   UNION(_t1,_t2, _t3)