code: public static final Renderer<BigDecimal> instance() { // NOPMD it's thread save!
      if (PercentBigDecimalRenderer.instanceRenderer == null) {
        synchronized (PercentBigDecimalRenderer.class) {
          if (PercentBigDecimalRenderer.instanceRenderer == null) {
            PercentBigDecimalRenderer.instanceRenderer = new PercentBigDecimalRenderer();
          }
        }
      }
      return PercentBigDecimalRenderer.instanceRenderer;
    }
docs: returns the instance.
  
  @return CurrencyDoubleRenderer