DataDynamica Precision Financial Calculator (For detailed definitions of IRR and NPV, click the link above then select User's Manual from the menu) 


Need a simple and nice feeling math calculator? Click here. 
Are you using a false IRR from Excel? Tell me more If you say you are not a person to do this kind of big projects, at least you should have a tool to compare whether to lease a car paying monthly payments or purchase a new one. Precision Financial Calculator provides you more capabilities of scenario analysis and more interesting realworld examples. Precision Financial Calculator is not just like a numeric calculator you are playing here. The user's manual provides you a thorough understanding of financial calculations. If you are looking for how NPV and IRR are derived, you will appreciate what the author, Dr. Ko, can offer you in the booklet.
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