1 - 10 units: S$6.311 - 50 units: S$5.54 More than 51 units: S$5.04
1 - 10 units: S$11.2511 - 50 units: S$9.9 More than 51 units: S$9
1 - 10 units: S$4.8611 - 50 units: S$4.27 More than 51 units: S$3.89
1 - 10 units: S$5.7811 - 50 units: S$5.08 More than 51 units: S$4.62
1 - 10 units: S$2.3611 - 50 units: S$2.08 More than 51 units: S$1.89
1 - 10 units: S$9.1911 - 50 units: S$8.09 More than 51 units: S$7.35
1 - 10 units: S$4.4611 - 50 units: S$3.93 More than 51 units: S$3.57
