Starbucks $($Croatia$).$ Starbucks opened its first store in Zagreb, Croatia in October $2010.$ In Zagreb, the price of a tall vanilla latte is $25\mathrm{.}71$ Croatian kuna $\text{'}(kn).$ In New York City, the price of a tall vanilla latte is $$2\mathrm{.}69.$ The exchange rate between the Croatian kuna and U$.$S$.$ dollar is $kn5\mathrm{.}6288=$$$1\mathrm{.}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.$)$