It was $88M for 0 recruits, per that USA Today article:
The Guard received 24,800 recruiting prospects from the program in 2012, documents show. In those cases, potential recruits indicated the NASCAR affiliation prompted them to seek more information about joining. Of that group, only 20 met the Guard's qualifications for entry into the service, and not one of them joined.
The $88M was National Guard spending on nascar from 2011-13. The 20 recruits who made the right choice were just in 2012, but the military.com article that daily beast is reporting on says 'potentially no recruits' when describing the whole nascar deal.
The craziest part to me is the 25k prospects yielding 20 qualified candidates. 99.92% were unfit for service.