Comparing One Brand vs Another in a Sub-Sum Part

[Niet32]

I would like to be able to compare one set of data with the data from the top spender in a market.

The problem is I can sum up for a single brand in a row, but how do you combine one brand with another brand in a sub-summary part?

Thanks

[-Queue-]

I don't understand what you're requesting. Can you elaborate on your goal?

[transpower]

Only if both brands are both part of a larger category.