selector for textbox input in row does not total

I have a table with rows of textboxes as inputs that hold numbers/hours with css .hours. I am trying to get the table to update totals when the row is deleted checkbox is checked/clicked.

How to Update the totals in the row & col at the End? when the delete row checkbox is checked.

2 steps: I zero out the values in the deleted row, and then want to update the new totals.

JS fiddle with HTML

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 // Call this function, When CheckBox with css .deleteRowis clicked
 $('#Maintable').on('click', '.deleteRow', function ()           
    {
        if ($(this).is(":checked")) {                
            var row = $(this).closest('tr').css({ 'color': 'red' });
            var hours = row.find('.hours');             

            $.each(hours, function (index, item) {
                if ($(this).val()) {  // if there is a value
                    $(this).val('0');
                    // Total the rows does not work??
                    HoursChangedFunction($(this));
                }
            });           
        } // :checked ends

  // when the row is deleted from the checkbox, find it and call this function
  // 1) First make all .hours 0, 2) and then redo the totals
  var HoursChangedFunction = function () {
        var columnIndex = $(this).closest('td').index();
        var row = $(this).closest('tr');
        var hours = row.find('.hours');
        var rowTotal = 0;
        $.each(hours, function (index, item) {
            rowTotal += Number($(this).val());
        });
        row.children('td.rowtotal').text(rowTotal.toFixed(2));
        var columnTotal = 0;
        var grandTotal = 0;
        var rows = $('#Maintable tr');
        $.each(rows, function (index, item) {
            columnTotal += Number($(this).children('td').eq(columnIndex).children('.hours').val());
            grandTotal += Number($(this).children('.rowtotal').text());
        });
        footer.eq(columnIndex).text(columnTotal.toFixed(2));
        total.text(grandTotal.toFixed(2));
    };

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