Chances of getting accepted

Hello,
I’m currently in my first year of CEGEP and I was planning to apply at UBC this winter in Economics. I have relatively good grades in all of the subjects except one: Calculus 2. I think I might even fail it and redo it in summer. Apparently, only Cal 1 is really required for Commerce and Economics, but seeing as my grade in Cal2 has dropped since Cal1, will I have a lot of difficulty getting in? Any help is appreciated and if you need any more information regarding my case, please don’t hesitate to ask.