Starbucks (Croatia). Starbucks opened its first store in Zagreb, Croatia in October 2010. In Zagreb, the price of a tall vanilla latte is 25.72 Croatian kuna (kn). In New York City, the price of a tall vanilla latte is $2.68. The exchange rate between the Croatian kuna and U.S. dollar is kn5.6288 = \$1.00. According to purchasing power parity, is the Croatian kuna overvalued or undervalued? The percentage of overvaluation or undervaluation is \%. (Round to two decimal places.)