Difference between 2 collum

[Baddeboy]

To give a small example.

I have 2 collums. In collum A there is always a value, an amount.

In collum B a value is added as the input grows, this value is always bigger then collum A.

Now I would like a cell to give me the difference between collum B and A, so B - A.

BUT I want this result only to include the difference if both collum are filled in.

Else the result will always be negative.

So only when there is a value in collum B, the value of cell in collum B - cell collum A and this for the entire collum.

I hope it makes any sense.

[AliGW]

Administrative Note:

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[TMS]

Maybe:

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[Baddeboy]

It doesn't quite do what I expect

[AliGW]

Please be specific: in what way does it not quite do what you expected? What did you expect?

[TMS]

Maybe this is what you had in mind:

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[Baddeboy]

Sorry if I wasn't clear. As I said. Collum A always has a value as it is the current amount. Only if in collum B there is a value so idd <>0, I want the sum of collum B - sul of collum A. Only the values where B has a value.

This may sound weird. I will make a small example.

[AliGW]

Yes, please, as I am afraid your latest post does not make much sense to me.

[TMS]

This then?

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or this

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