class MoneyUtils {

    public static BigDecimal getDiscountDisplayValue(final BigDecimal original, final BigDecimal discounted) {

        if (original == null || discounted == null) {
            return BigDecimal.ZERO;
        }
        return original.subtract(discounted).multiply(HUNDRED)
                .divide(original, RoundingMode.FLOOR).setScale(0, RoundingMode.HALF_EVEN);

    }

    private  MoneyUtils();

}