code: public final String prn(final Map<String, Object> pReqVars,
      final BigDecimal pVal) {
      return this.srvNumberToString.print(pVal.toString(),
        (String) pReqVars.get("decSepv"), //TODO system preferences
          (String) pReqVars.get("decGrSepv"),
            (Integer) pReqVars.get("priceDp"),
              (Integer) pReqVars.get("digInGr"));
    }
docs: <p>Simple delegator to print number.</p>
  @param pReqVars additional param
  @param pVal value
  @return String