The business income is gambling winnings. It's being filed through a schedule C because it is being pursued as a business (which NC requires to claim losses). As I understand it, that means it should all be taxed at 24% flat rate.
I don't believe that just because it's filed on a schedule C it somehow converts it to regular income. Besides, everything beyond $200k in winnings would be taxed above 24% if it's ordinary income, and as the numbers go up that matters a lot.
