Powerbi中的组内累积和绘图

我绝对是PowerBi的新手。 我想得到

价格

（百分比）图的累计总和

数据： 措施：

id  group   price
111 a   22
112 a   24
113 a   21
214 b   50
215 b   10
216 b   5
318 c   30
319 c   20
320 c   15

let
    Source = Excel.Workbook(File.Contents("C:\Users\1\Documents\dataxlsx.xlsx"), null, true),
    Sheet1_Sheet = Source{[Item="Sheet1",Kind="Sheet"]}[Data],
    #"Promoted Headers" = Table.PromoteHeaders(Sheet1_Sheet, [PromoteAllScalars=true]),
    #"Changed Type" = Table.TransformColumnTypes(#"Promoted Headers",{{"id", type text}, {"group", type text}, {"price", Int64.Type}}),
    #"Sorted Rows" = Table.Sort(#"Changed Type",{{"price", Order.Descending}}),
    #"Added Index" = Table.AddIndexColumn(#"Sorted Rows", "Index", 1, 1, Int64.Type)
in
    #"Added Index"

cumsum = CALCULATE(SUM(Sheet1[price]), FILTER(ALLSELECTED(Sheet1), Sheet1[Index] <= MIN(Sheet1[Index])), VALUES(Sheet1[group]))
cumsum percent = [cumsum] / CALCULATE(SUM(Sheet1[price]), ALLSELECTED(Sheet1), VALUES(Sheet1[group]))
group index = CALCULATE(SUM(Sheet1[price]), FILTER(ALLSELECTED(Sheet1), Sheet1[Index] <= MIN(Sheet1[Index])), VALUES(Sheet1[group]))
group index percent = [group index]/ CALCULATE(COUNTROWS(Sheet1), ALLSELECTED(Sheet1), VALUES(Sheet1[group]))