public Percent subtract(Percent Percent){
  assertDefined();
  if (null == m_value) {
    return (Percent);
  }
  BigDecimal value=m_value.subtract(Percent.getBigDecimalValue());
  return new Percent(value);
}

public Percent subtract ( Percent Percent ) { assertDefined ( ) ; if ( null == m_value ) { return ( Percent ) ; } BigDecimal value = m_value . subtract ( Percent . getBigDecimalValue ( ) ) ; return new Percent ( value ) ; }
subtracts two percent objects
