SQL  de SELECAO do dia Anterior.  Saldo Final: 29.50
SELECT Saldo_Final FROM comissao_flex  WHERE Dominio = "81"   AND Empresa="1"    AND Vendedor="0"    AND Data_Flex<"2021-08-21" ORDER BY Data_flex DESC LIMIT 1  

 SQL  de SELECAO do dia Anterior.  Saldo Final: -1335.36
SELECT Saldo_Final FROM comissao_flex  WHERE Dominio = "81"   AND Empresa="1"    AND Vendedor="1309"    AND Data_Flex<"2021-08-21" ORDER BY Data_flex DESC LIMIT 1