In Japan, you need to pay “consumption tax” when you purchase things.
Consumption tax will be charged, in addition to the price of the product, at the counter.
At Japanese stores, selling items at a higher price for tourists almost never happens, which is often seen in foreign counties. You can usually trust the price the clerk mentions or displays.
Depending on a store, the price tag attached to the products include consumption tax but some do not, so please check carefully before purchasing. It is specified clearly in the receipt, so please check it well even after purchase.
Sensibility of Prices
Juice sold in vending machines in Japan is 140 yen per can.