Even if 80% is accurate, it would be important to know what type of jobs are involved, how long it took to get them, how much self-improver work experience at various low wage jobs was involved, and how many were SSTRs or pay-to-fly types, etc.
Indeed! I remember a training company in my field that claimed a 100% employment success rate after completing their course. What they neglected to say was that the employment was necessarily anything to do it, so they could have ended up leaving the industry and working for Mothercare, Pizza Hut or themselves - but hey that 100% success rate in their books!
J.