This compendium contains and explains essential mathematical formulas for financial economics and finance. A broad range of aids and supportive examples will help readers to understand the formulas and their practical applications. This mathematical formulary is presented in a practice-oriented, clear, and understandable manner, as it is needed for meaningful and relevant application in global business, as well as in the academic setting and economic practice. The topics presented include but are not limited to accumulation, discounting, annuity, interest calculation, redemption, investment, effective interest rates, ICMA, depreciation, and present value. Given its scope, the book offers an indispensable reference guide and is a must-read for undergraduate and graduate students, as well as managers, scholars, and lecturers in financial economics and business.