50 - $53.90 $1.08 per item, includes $4.90 GST) 100 - $86.90 $0.87 per item, includes $7.90 GST) 250 - $185.90 $0.74 per item, includes $16.90 GST) 500 - $284.90 $0.57 per item, includes $25.90 GST) 750 - $427.90 $0.57 per item, includes $38.90 GST) 1000 - $559.90 $0.56 per item, includes $50.90 GST)