How to a sum of value from filter

[Fred12]

Hello, 

I'm trying to create a table with sum of value wich are selected in my filter.

Here an example : 

And my table at right : 

CATEGORIE	VALUE
A	200 $
B	221 $
C	2032 $
D	2043 $
E	20 $
D	205 $

So I got it with select 0 for apple and 0 for banana, and I did this formula : 

Sum({<GetFieldSelections=>}[Fruits])

But It doesn't work, it put me same result, like if sum didn't work.

I want to have sum of my filter that I clicked

Thanks for reading me

[MarcoWedel]

can you please post an example with consistent field names, some data and your expected results?