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); 
                                            } 
                                            ?>