What matters most in this case, in my humble opinion, is your personal statement.  You have to articulate why your gpa is 2.5/4.0.  And if you can do that persuasively, you might stand a good chance, provided you have other credentials - GRE, Recommendation Letters, Extra-curriculars, Work experience, etc. - that are viable.

Furthermore, most grad school admission officers look at the progression during your undergraduate years.  So, if your gpa was low in your freshman year (say 2.0) and you gradually scored higher as you approached your senior year (say for your final 2 semesters, your gpa was >3.5), this might be seen as a positive trend and make you an attractive candidate, although your cumulative gpa is 2.5.  This case would be much better than someone who started out at >3.5 in freshman year and descended to 2.5 in senior year, although his/her cumulative gpa might still be >3.0.

Additionally, if your grades in finance related courses are respectable, your cumulative gpa can be counterbalanced.

Good luck!