Here you can find the source of toPercent(final BigDecimal decimalValue, final MathContext mathCntext)
public static BigDecimal toPercent(final BigDecimal decimalValue, final MathContext mathCntext)
//package com.java2s; /**/*from w w w . j ava 2 s. c o m*/ * *************************************************************************** * Copyright (c) 2010 Qcadoo Limited * Project: Qcadoo Framework * Version: 1.2.0 * * This file is part of Qcadoo. * * Qcadoo is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published * by the Free Software Foundation; either version 3 of the License, * or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * *************************************************************************** */ import java.math.BigDecimal; import java.math.MathContext; public class Main { private static final BigDecimal ONE_HUNDRED = BigDecimal.valueOf(100L); public static BigDecimal toPercent(final BigDecimal decimalValue, final MathContext mathCntext) { return convertNullToZero(decimalValue).divide(ONE_HUNDRED, mathCntext); } public static BigDecimal convertNullToZero(final Object value) { if (value == null) { return BigDecimal.ZERO; } if (value instanceof BigDecimal) { return (BigDecimal) value; } return BigDecimal.valueOf(Double.valueOf(value.toString())); } }