I’m just leaving this here for my future reference. This is the faster way to generate running total in Power Query.
Though, I think this next video has more useful code process:
Using List.Generate to Generate Running Total Column in Power Query
Here’s a quicker, cleaner way to generate a running total in Power Query—no need for complex formulas or multiple steps! With this streamlined approach, you can set up a cumulative total in record time, saving both processing power and patience. Say goodbye to endless column configurations and hello to efficiency!