I disagree with SupersonicMax, I think it's somewhere along the lines of 3.1415926%. All jokes aside, it completely depends on how hard you are willing to work. Trying to get by with the bare minimum isn't a good idea when there is hundreds of other people out their wanting the same spot. If you're really that serious about joining the military, go back and finish high school. Maybe do some post-secondary like most people should do. The military isn't just going to handout jobs to every Joe Schmoe that apply's because they have met the minimum standards. Good Luck.