Personally, I feel that it is only easier for students of Mathematics College to learn economics and management in the future, but it is more difficult to learn finance after entering economics and management.
Because I don't know what your major is, I will give you the examination subjects, bibliography and review books of the School of Mathematics and Statistics of Wuhan University.
Bibliography of examination subjects
432 Statistics [Professional Master]
20 18 Review Book for 432 Statistics Postgraduate Entrance Examination Course of Wuhan University (including real questions and answers analysis)
"20 18 Wuhan University 432 Statistics Postgraduate Entrance Examination Course Full Reality Simulation Test Questions and Answers Analysis"
Statistics of Jia Junping
Dai Chaoshou's Concise Course of Mathematical Statistics
mathematical analysis
Mathematical Analysis of Mathematics Department of East China Normal University
Chang Gengzhe's Mathematical Analysis Course
"20 18 Wuhan university 653 mathematical analysis postgraduate course full reality simulation test questions and answer analysis"
20 18 Review Book for 653 Mathematics Analysis Postgraduate Entrance Examination Course of Wuhan University (including real questions and answers analysis)
873 linear algebra
Advanced Algebra of Peking University Mathematics Department
Chen Zhijie's Higher Algebra and Analytic Geometry
20 18 Review Book for 873 Linear Algebra Postgraduate Entrance Examination Course of Wuhan University (including real questions and answers analysis)
"20 18 Wuhan University 873 Linear Algebra Postgraduate Course Full Reality Simulation Test Questions and Answers Analysis"