Cart Total not calculated properly

I am about to setup a store in India. But i am facing a weird problem.

I have changed my default currency to Indian National Rupee (INR) and updated other currencies. I have just added a sample product for testing purpose. Now when I order 1 quantity of that item the price is calculated fine. But when I order 2 or more quantities the calculation goes wayward. Now if i change the currency to USD, the calculation displayed is proper.

Ex. Item 1 Price is 700 INR.
I order 2 Quantity. So 2x700=13400

Now if I change the above transaction currency to USD.
1 USD=49.01 INR
Item 1 price becomes $15.82
So 2x15.82=$31.65

Some one please help me out of this.
I am using the latest version of Zen-Cart.
Thanks in advance.

Got the problem. I placed the thousand point in currency to 3 instead of ','. So stupid of me.

Silly silly you ... :lamo:

Thanks for the update as this is a common oops! that happens on defining currencies ... always a help to know the issue and the solution ...