1 box of these is 380g. The listing states that this price is for 20 x 380g, or 20 boxes. The unit count is listed as 7600 grams. Next to the price it states ($0.09/100g).
Doubt Amazon will honour this but good luck to anyone who wants to give it a go.
Thanks, worth a shot and Amazon will refund the $7.56 if not lol.