Java tutorial
//package com.java2s; import java.math.BigDecimal; public class Main { public static BigDecimal calculateDiscountAmt(BigDecimal Discount, BigDecimal DiscountAmt) { if (DiscountAmt == null || Discount.compareTo(BigDecimal.ZERO) == 0) return BigDecimal.ZERO; else { BigDecimal discountPerc = Discount.divide(new BigDecimal(100)); return DiscountAmt.multiply(discountPerc); } } }