I want to renew avast for 3 more years

Avast Free Antivirus / Premium Security
1

I want to renew avast for 3 more years, it will be expired in 38 days. I found that avast premier with 3 years version is 99.99 USD, but in the official website of China, the premier 3 years version is $ 428 Chinese dollar ,

428.00 CNY = 68.7498 USD
中國元，人民幣 ↔ 美元
1 CNY = 0.160630 USD 1 USD = 6.22547 CNY

It is equivalent of 68 USD, im not from China, so i am wondering is there any problem exited or the license only for the location of China ?

thanks for the help, cause I want to buy 3 years version license

2

I don’t know about exchange rates.
For more info see http://www.avast.com/en-us/compare-antivirus