<p>@Lakerss I think courses in Calculus or high scores on the GMAT are necessary for business school. If you never took calculus and you score low on the GMAT you will not get into a good business program. If you take calculus and receive high grades this will help if you end up scoring low on the GMAT.</p>
<p>Bottom line is if you’re serious about business school you should be taking calculus, differential calculus, etc.</p>