Against which value the current USDINR is actually compared with?

#1
Once you open the below website

https://in.finance.yahoo.com/q?s=USDINR=X

You would see the following

64.9090 Down 0.1225(0.1900%)

i have got a web service which will return me the current USDINR value

For example i have got a REST Webserice which will

http://free.currencyconverterapi.co...353970158845186_1445864027091&_=1445864027092

which will return me

typeof jQuery203039353970158845186_1445864027091 === 'function' && jQuery203039353970158845186_1445864027091({"USD_INR":{"val":64.9255}});
My question is , how can i calculate whether it is Down or Up , against which value i should compare the 64.9090 with ??