250 - $31.90 $0.13 per item, includes $2.90 GST) 500 - $60.50 $0.12 per item, includes $5.50 GST) 750 - $82.50 $0.11 per item, includes $7.50 GST) 1000 - $108.90 $0.11 per item, includes $9.90 GST) 2500 - $273.90 $0.11 per item, includes $24.90 GST) 5000 - $548.90 $0.11 per item, includes $49.90 GST)