setTotal(NumberUtils.formatNumber(total, 2));
total.setScale(2, RoundingMode.HALF_EVEN);  setTotalBigDecimal(total);
    public void updateTotalValue() {        double total = 0;        for (GuideEntry guideEntry : getGuideEntries()) {            total += guideEntry.getPrice() * guideEntry.getQuantity();        }        setTotal(NumberUtils.formatNumber(total, 2));    }