Business analytics are very important/relevant for marketing. I would suggest that calculus as well as statistics will be important classes for you.
This is the third time you have posted about calculus for business. One semester of calculus is required as a part of every accredited business program I know of. You need to take the class and pass it.
I see from a prior post that you got a D in pre-calc. I would strongly recommend that you get a firm grasp on pre-calculus concepts before starting calculus (be it through re-taking the class, a tutor, online resources, your college math center etc.).