1 - 50 units: S$8.8251 - 100 units: S$8.09 More than 101 units: S$7.35
1 - 50 units: S$7.0651 - 100 units: S$6.47 More than 101 units: S$5.88
1 - 50 units: S$4.551 - 100 units: S$4.13 More than 101 units: S$3.75