if ((Math.abs(field.diff_preliminary) > compareValue) || (Math.abs(field.diff_yesterday) > compareValue)) {
                  voyageCompareRow.deviation = true;
                  if(hasAcknowledged){
                    if ((Math.abs(field.diff_acknowledged) > compareValue)) {
                        voyageCompareRow.acknowledged = false;
                    } else{
                        voyageCompareRow.acknowledged = true;
                    }
                  }
                }