Hello Community,
I want to create a waterfall that goes from Actuals to Budget. However, the sign of the items is reversed in the original data (negative sign means extra spend). The calculation would be:

Is there any way to build a waterfall like this in Anaplan, keeping the original sign of the data? I tried different ways but the waterfall only works if the summary line item is a simple sum of the other items.
Thank you for the help.