Power Query: transform a column by multiplying by another column

Question

I want to do something similar to Power Query Transform a Column based on Another Column, but I\'m getting stuck on how to modify the syntax for my particular goal.

Answer 1

I think the Table.AddColumn followed by Table.RemoveColumns is the usual and clearest way for this transformation. I'm also not happy with the fact that this results in so many steps in PowerQuery. But due to internal backfolding methods of PowerQuery this will usualy not result in better performance. (PowerQuery trys to give the main Work back to the queried Database if avaiable)