Did you buy from eBaydot COM is US dollars?
Is your credit card in Canadian dollars?
The difference is foreign exchange of about 30% depending on the date of the purchase.
http://www.xe.com/currencyconverter/convert/?Amount=1&From=USD&To=YEN
Did your seller use the Global Shipping Program from the USA or UK?
Your total included duty Sales Tax and a ~$5 service fee.
Most credit cards also charge exchange and a fee for the exchange.