What is the "math" what are your assumptions? Best case and worst case?
What income are you assuming for with college degree vs. owning your business?
This was from a different forum:
Simple calculation to see if it's worth it.
Given your grades, I'll assume you're part of the crowd that would graduate in 4 years (over half don't). So, take your opportunity cost for those 4 years plus the debt for those 4 years.
Total cost. Assuming you make $15 an hour, and work 40 hours a week, this translates to $31200 a year (not including taxes), or $124800 over 4 years. Add in your debt of $15000, and you get $139800.
Excess earnings per year. Now, you take your projected salary with a degree, minus your salary without a degree. Here I'll assume you make the average of a college graduate (you can look up data for the specific degree you want to be more accurate), so that's $45000 - $31200 (or however much you'd make at this point), or $13800.
Now it's just your (total cost) / (excess earnings per year), or 139800/13800. This leaves you with 10.13, which is the number of years it would take you to out earn yourself.
This is the super simple version of the calculation. There's plenty of other things to factor in like taxes, job security, job benefits, job location, salary increases, upward mobility, compound interest for your opportunity cost and loans, and so on.
End notes:
I think depending on the degree you get, college can be very clearly worth it or very clearly not worth it. The under employment rate (have jobs that don't require their degree) for college graduates is just under 50%. Even if you aren't under employed, some fields don't pay well. These degrees are clearly not worth it financially.
I'm just over a year out of college and am earning just over $90k with a comp sci degree. Compared to what I'd be doing without a degree, using the calculation above, I'd out earn myself in less than 3 years.
I wouldn't take your 529 money out for investing unless there's absolutely no one else's education it can help pay for. It's taxed a butt load if you use it for anything but education.
TL
R It depends on how much you'd make with and without a degree, which depends on your degree. You can use a simple calculation, with a little research, to figure out whether it'd be worth it, and how quickly it'd be worth it. Don't take your 529 money out if you can use it for someone else's education instead.