It depends how prestigious the business degree is. if you're looking at Wharton or MIT Sloan, the two top business undergrad schools in the country, without national math awards you won't get in. other business degrees, too, require that you have a rudimentary knowledge of math. in fact, as many if not more math majors as business majors get recruited by major companies on wallstreet and other places. math, but probably not calculus and above level math, is important for a business field. but even if you're doing poorly in high school math, you still have a great chance--just pull up that average a little and show lots of passion if what you like to do, and you can still get into top business schools!