```
let
Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
#"Filled Down" = Table.FillDown(Source,{"Column1"}),
#"Promoted Headers" = Table.PromoteHeaders(#"Filled Down", [PromoteAllScalars=true]),
#"Renamed Columns" = Table.RenameColumns(#"Promoted Headers",{{"JAN", "Month"}}),
#"Filtered Rows" = Table.SelectRows(#"Renamed Columns", each ([Month] <> "TOTAL") and ([KILO METERS] <> 0 and [KILO METERS] <> "KILO METERS")),
#"Inserted Multiplication" = Table.AddColumn(#"Filtered Rows", "Multiplication", each [KILO METERS] * [#"COST/KM"], type number),
#"Grouped Rows" = Table.Group(#"Inserted Multiplication", {"Month"}, {{"Total", each List.Sum([Multiplication]), type number}}),
#"Calculated Sum" = List.Sum(#"Grouped Rows"[Total]),
#"Converted to Table" = #table(1, {{#"Calculated Sum"}})
in
#"Converted to Table"
```