add sum in list blade

listSum.blade.php

   <script>
        // Insert the sum of a column into the columns footer, for the visible
        // data on each draw
        // var table = $('#crudTable').DataTable();
       // $("#wave_total").html( $('#crudTable').column( 3 ).data().sum());
        jQuery(document).ready(function($) {
            jQuery.fn.dataTable.Api.register( 'sum()', function ( ) {
                return this.flatten().reduce( function ( a, b ) {
                    if ( typeof a === 'string' ) {
                        a = a.replace(/[^\d.-]/g, '') * 1;
                    }
                    if ( typeof b === 'string' ) {
                        b = b.replace(/[^\d.-]/g, '') * 1;
                    }

                    return a + b;
                }, 0 );
            } );
            // var table = $('#crudTable').DataTable();
            crud.table.on('draw.dt', function () {
                // console.log('Redraw occurred at: ' + new Date().getTime());
              $("#waveTotal").html(crud.table.column(6).data().sum()  );

            });

    });

    </script>
    <div id="waveTotal"></div>