It didnt work till...
I added the 2 itens on my .list.php and changed to
$rec['total_valor_comissionado'] = $soma;
$rec['total_valor_nao_comissionado'] = $soma_nao;
but the value doesn't show.
I tested the SQL sentence and it's working... is there any way to print values of variables on the screen?
I'm really sorry to disturb you till, but this is really importante for me... thanks again!