Financial management is not so demanding on mathematics. Although many formulas are complicated and difficult to understand, as long as you can understand and remember the formulas and know how to use them, the exam will be fine. He doesn't ask the examinee to deduce the formula, how the formula came from and why it is this way instead of that. In a word, if someone else has done it, you can set it with a formula. Don't be scared by those formulas before you start!
If you study, you should first remember the formula, understand the examples in the book, know how to use it, then analyze it yourself and turn it into your own thing, then use it flexibly, match the tutorial and practice more. Dong 'ao is good.