250 - $38.50 $0.15 per item, includes $3.50 GST) 500 - $38.50 $0.08 per item, includes $3.50 GST) 750 - $49.50 $0.07 per item, includes $4.50 GST) 1000 - $64.90 $0.06 per item, includes $5.90 GST) 2500 - $141.90 $0.06 per item, includes $12.90 GST) 5000 - $284.90 $0.06 per item, includes $25.90 GST)