The cost of the exam and other fees are dependent on the country where you will be taking the exam.

Note that each location will have rescheduling, canceling, and score report fees. For more information, follow the link at the bottom of this post.

CountryCost of the Exam
United States$275
Australia$250
Canada$275
China$250
France€250
Germany €250
India$275
Ireland€250
Italy€250
United Kingdom £225

For other locations and fees, please visit the official GMAT Location Specific Pricing, Regulations and Identification Requirements site.