Sacar un porcentaje

[karenlorenadg]

Amigos ya encontré la sulucion muchas gracias, la voy a dejar aqui

Código PHP:

  <?php  
                                            {  require_once("../config/conexion.php");  
                                            $query=mysql_query("select * from table_point_sales where user_id=".$_SESSION['user_id']."");  
                                            $suma=0;  
                                            while($sumar=mysql_fetch_array($query))  
                                            {  
                                            $suma=$suma+$sumar["subtotal"];  
                                            }  
                                            //echo $suma; 
                                            echo number_format ($suma*0.010);  
                                            }  
                                            ?>