by the Box (6 Bottles) -> 4,000 Baht + VAT Glass Size Cost per Drink 08 oz [1 bottle makes 64 drinks] 10.40 Baht 10 oz [1 bottle makes 51 drinks] 13.05 Baht 12 oz [1 bottle makes 42 drinks] 15.85 Baht 14 oz [1 bottle makes 36 drinks] 18.50 Baht 16 oz [1 bottle makes 32 drinks] 20.81 Baht by the Bottle -> 900 Baht Net Cost of one Drink (8 oz) is 14 Baht.

  ... it's really this simple!