very basic question about how to read currency rate changes

[BeHold]

Take this for example: http://www.google.com/finance?chdnp=1&chdd=1&chds=1&chdv=1&chvs=Linear&chdeh=0&chfdeh=0&chdet=1337766949305&chddm=140862&cmpto=CURRENCY:UAHGBP;CURRENCY:UAHEUR&cmptdms=0;0&q=CURRENCY:UAHUSD&ntsp=0

Does it mean that I need to pay 2+% less (in UAH) for GBP than I would have needed to pay in January?

How does it compare to local (Kiev-based) exchange rate changes, found here: http://news.yandex.ua/quotes/143/40001.html?ncrnd=3983

Please help as to how to interpret these graphs for a newbie!!! Only needed for simple cash exchanges, to know what to buy and when!