Refer different values in a single column

[Anonymous]

I am working on this custom formula:

([Test Post]-([Test Pre]+Number.Abs([Test Pre])*([Control Post]-[Control Pre])/Number.Abs([Control Pre])))/Number.Abs([Test Pre]+Number.Abs([Test Pre])*([Control Post]-[Control Pre])/Number.Abs([Control Pre])).

Test Pre, Test Post, Control Pre and Control Post are in the same column called "Group". can anyone help me with how I can refer each of these values in the formula above using column name?

Thanks

[ToddChitt]

A) That looks like DAX, not Power Query M language. Please elaborate. (BTW, this is the Power Query forum)

2) What do you mean by >>Test Pre, Test Post, Control Pre and Control Post are in the same column called "Group".<<

3) Can you give us some sampe of A) what the data looks like now, and B) what you want as an output?

Help us hep you.