50 - $60.50 $1.21 per item, includes $5.50 GST) 100 - $93.50 $0.94 per item, includes $8.50 GST) 250 - $203.50 $0.81 per item, includes $18.50 GST) 500 - $317.90 $0.64 per item, includes $28.90 GST) 750 - $471.90 $0.63 per item, includes $42.90 GST) 1000 - $621.50 $0.62 per item, includes $56.50 GST)