1 - 10 units: S$611 - 50 units: S$5.64 More than 51 units: S$5.39
1 - 10 units: S$6.7411 - 50 units: S$6.34 More than 51 units: S$6.05
1 - 10 units: S$50.1911 - 50 units: S$47.19 More than 51 units: S$45.05
1 - 10 units: S$28.2211 - 50 units: S$26.96 More than 51 units: S$26.46
