docs: static BigDecimal calculateFuzzAmount(ParamPrefixEnum cmpValue, BigDecimal theValue) {
  		if (cmpValue == ParamPrefixEnum.APPROXIMATE) {
  			return theValue.multiply(new BigDecimal(0.1));
  		} else {
  			String plainString = theValue.toPlainString();
  			int dotIdx = plainString.indexOf('.');
  			if (dotIdx == -1) {
  				return new BigDecimal(0.5);
  			}
  
  			int precision = plainString.length() - (dotIdx);
  			double mul = Math.pow(10, -precision);
  			double val = mul * 5.0d;
  			return new BigDecimal(val);
  		}
  	}