Lookup sum via substring?

Hi fyip,

Based on my test, you can refer to below steps:

1.I have entered some sample data:

2.Create two measures.

Measure 4 = var s10= CALCULATE(SUM(Table1[Amount]),Table1[Acc No]=101010)

var s1020 =CALCULATE(SUM(Table1[Amount]),Table1[Acc No]=101020)

var s2010 = CALCULATE(SUM(Table1[Amount]),Table1[Acc No] = 201010)

var s201020 = CALCULATE(SUM(Table1[Amount]),Table1[Acc No]=201020)

return

IF(MAX(Table1[Acc No])=101010,s10-s2010,IF(MAX(Table1[Acc No])=101020,s1020-s201020,BLANK()))

mar = [Measure 4]/SUM(Table1[Amount])

3.Create a Table visual and add the related field and you can see the result.

You can also download the PBIX file to have a view.

https://www.dropbox.com/s/kfcegjy7o1pnvp4/Lookup%20sum%20via%20substring.pbix?dl=0

Regards,

Daniel He