See if you wish to go for the jobs then reading your core course well will be sufficient and having concepts regarding the Macroeconomics and Microeconomics will help you to get a job. Don't worry.

Now if you wish to go for further studies, then see both the courses can be beneficial. But as per my suggestions, taking Mathematics will be a better choice. The reason behind it is that if you have a good Mathematics skill then it can help your further studies as well as the entrance examination. Now when you will take admission in MSc/PhD/MA, you will get enough exposure to learn the research methodology. But having a good grasp on Mathematics, will help you to be a better candidate in the field. Now its your choice, choose the subject as per your interest.

For more information regarding ECONOMICS as a career consider the link below:

https://www.careers360.com/courses/economics-course

I hope this helps. Wish you a great eve!