5 - $9.90 $1.98 per item, includes $0.90 GST) 10 - $9.90 $0.99 per item, includes $0.90 GST) 25 - $20.90 $0.84 per item, includes $1.90 GST) 50 - $38.50 $0.77 per item, includes $3.50 GST) 75 - $53.90 $0.72 per item, includes $4.90 GST) 100 - $71.50 $0.72 per item, includes $6.50 GST)