250 - $16.50 $0.07 per item, includes $1.50 GST) 500 - $31.90 $0.06 per item, includes $2.90 GST) 750 - $42.90 $0.06 per item, includes $3.90 GST) 1000 - $53.90 $0.05 per item, includes $4.90 GST) 2500 - $108.90 $0.04 per item, includes $9.90 GST) 5000 - $163.90 $0.03 per item, includes $14.90 GST)