The new Windows Store will be the single place to acquire Windows apps, games and more. It will include the existing catalog of over 650,000 Windows 8.x and Windows Phone 7.x/8.x Store apps, which will automatically move to the new Store. And, we’re currently adding the Xbox Music and Xbox Video catalogs of over 40 million songs and over 400,000 movies and TV shows. Beginning later this year, the Store will also include familiar and new PC games and desktop software, applications and utilities.
More numbers in the below screenshot.