Preventing Duplicates in Column When Unpivoting Table

[mrfsca]

Hello, I'm having difficulty when trying to unpivot columns. The desired output is to have no duplicates in the "RPO Produced" column. I have read several discussions, including one from here https://community.fabric.microsoft.com/t5/Desktop/Unpivot-multiple-columns-without-duplicates/m-p/66... However, I haven't found the solution I'm looking for. Here is the attached data structure and the current result (with duplicates). How can I prevent the "RPO Produced" column from producing duplicates and show the actual value from source?
let
Source = Excel.Workbook(File.Contents("C:\\DASHBOARD.xlsx"), null, true),
Cost_Sheet = Source{[Item="Cost",Kind="Sheet"]}[Data],
#"Promoted Headers" = Table.PromoteHeaders(Cost_Sheet, [PromoteAllScalars=true]),
#"Unpivoted Columns" = Table.UnpivotOtherColumns(#"Promoted Headers", {"Period", "Period Duration", "Location Plant", "RPO Produced (MT)"}, "Attribute", "Value")
in
#"Unpivoted Columns"

result (RPO duplicated)

[Ashish_Mathur]

Hi,

Should should the number in the RPO producted column appear only for the depreciation cost row?  Share data in a format that can be pasted in an MS Excel file and show the expected result.