the exam fee is $200. with this you will be given a voucher. the prometric website will show the exam fee as $300. But when registering the exam and scheduling it, you will be given a discount of $300. So you will be effectively spending only $200.
The exam voucher have no value printed on it. It contain only voucher number. Check your local prometric center, there may be some discount on it. In India, the voucher price is much less than $200 in local currency.
Hi last week i also purchased voucher, it is 200$ when you purchase from sun and it is 300$ when you purchase from prometric. Both are correct, you can buy from sun and register in prometric for exam date.