rt-items .total_price");

        sumVal = 0;

    for (var i = 0; i < tbl.length; i++) {
        // console.log(tbl[i].textContent);
      sumVal += parseFloat(tbl[i].textContent);
    }
    return sumVal
  }

    sum_price = subtotal();
    var option_price = parseFloat($('input[type=radio][name=option]:checked').val());
    $('#grandtotal').text(sum_price+option_price);
    $('.plus-btn').click(function(){
        var row = $(this).parent().parent().parent().parent();
        var in_stock_val = $(row).fi