Save to a variable.

[Juan Manuel Quiñonero]

Hi.
How can I do this?

Balance=1000€

closed operation with losses=100€

Balance after closing operation=900€

1000-900=100 Result of the subtraction save in a variable.

[josecortesllobat]

You have this option

But I am not sure if it is what you are looking for.

[Juan Manuel Quiñonero]

I need the result of the subtraction between the balance before closing the operation in progress and after.