How to achieve running total with power query?

Question

I want to do a running total with power query like I did with Tableau software before. Does anyone have ideas, thanks in advance!

Answer 1

Very easy.

Step 1: Add an index

#"Added Index" = Table.AddIndexColumn(#"**Prior Step**", "Index", 0, 1)

Step 2: Add a running total

#"Added Running Total" = Table.AddColumn(#"Added Index", "Running Total, each List.Sum(List.FirstN(#"Added Index"[**Column to Add Values From**],[Index]+1)))