Create a Drupal View of current event participant numbers
Yes you can do this in a Drupal View but it will require some config (both to tell Drupal about your CiviCRM tables as well as the Views config itself); 

The goto solution for this within CiviCRM itself is:

Install: Extended Report Extension: 
Got to your Adminster -> System -> Settings -> Manage Extensions -> Add New -> ExtendedReport (nz.co.fuzion.extendedreport)

After you've installed it -> go Administer -> CiviReport -> Create New Report from Template and select e.g. Extended Report - Contributions with Price Set data