Power Query - Aggregate and transpose help

Hi cottrera ,

I've included the code to do what you want below, but the first question is: why do you want to do this? The original format of your data is the optimum and most efficient structure for reporting. Using expensive resources to move the structure further away from optimum is not generally considered best practice.

The answer to your actual question:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("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", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Job_Number = _t, VoidPK = _t, #"Cost Type" = _t, #"Base Amount" = _t]),
    chgTypes = Table.TransformColumnTypes(Source,{{"Job_Number", type text}, {"VoidPK", type text}, {"Cost Type", type text}, {"Base Amount", type number}}),
    pivotCostType = Table.Pivot(chgTypes, List.Distinct(chgTypes[#"Cost Type"]), "Cost Type", "Base Amount", List.Sum),
    addGrandTotal = Table.AddColumn(pivotCostType, "grandTotal", each List.Sum({[LABOUR],[MATERIALS],[SCP]}))
in
    addGrandTotal

Pete