How can I manage formulas in subtotals?

[iRumba]

When I use tag <<sum>>, i have subtotals() in result. But i want sum()

[b0bi79]

Here is the code that manages the formulas in the tag <<group>> https://github.com/ClosedXML/ClosedXML.Report/blob/230d148d5da51900c3a6bd1f5bfc748be9f27a75/ClosedXML.Report/Excel/Subtotal.cs#L289 Now there is no way to change the formula, but you can contribute to the project and offer your PR.

[iRumba]

Ok, thanks