After I aggregate some columns, I want to show a percentage (inner agregate sum/ outer aggregate sum), how can i do that?

Hi

Today I have a grid, where each time I aggregate column, it show the sum of an specific column for each agregation.

Now I what to show, together with the aggregated sum, the percentage inner agregate sum/ outer aggregate sum.

Example:

Lets pretend I aggregate columns A and them B.

The footer of aggregation A, should show: "sum agregate A" and "'sum agregate A' / 'sum (total)'"

The footer of aggregation B, should show: "sum agregate B" and "'sum agregate B' / 'sum agregate A'"

How can i do that?

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