250 - $49.50 $0.20 per item, includes $4.50 GST) 500 - $49.50 $0.10 per item, includes $4.50 GST) 750 - $60.50 $0.08 per item, includes $5.50 GST) 1000 - $75.90 $0.08 per item, includes $6.90 GST) 2500 - $163.90 $0.07 per item, includes $14.90 GST) 5000 - $317.90 $0.06 per item, includes $28.90 GST)