Hello aspirant,
As cut-offs varies from year to year and depends on many factors like number of seats available, previous year's cut-offs, number of students taking admission, etc.
As you have not mentioned your Caste Category, so I'm considering it as General Category and giving information based on it.
But based on previous year's cut-offs a safe percentage of 92+ to get B.A Economics course in St. Xavier's College, Mumbai for General Category candidates.
You can visit their official website for more information.
https://xaviers.edu/main/
Hope this information was helpful to you
Good Luck!!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile