250 - $38.50 $0.15 per item, includes $3.50 GST) 500 - $71.50 $0.14 per item, includes $6.50 GST) 750 - $93.50 $0.12 per item, includes $8.50 GST) 1000 - $108.90 $0.11 per item, includes $9.90 GST) 2500 - $214.50 $0.09 per item, includes $19.50 GST) 5000 - $317.90 $0.06 per item, includes $28.90 GST)