5 - $9.90 $1.98 per item, includes $0.90 GST) 10 - $20.90 $2.09 per item, includes $1.90 GST) 25 - $42.90 $1.72 per item, includes $3.90 GST) 50 - $75.90 $1.52 per item, includes $6.90 GST) 75 - $115.50 $1.54 per item, includes $10.50 GST) 100 - $148.50 $1.49 per item, includes $13.50 GST)