Customer Reviews for

HP 30b Business Professional Calculator

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  • Posted December 21, 2011

    MIScalculator

    Unfortunately, I have to report that this calculator and it's predecessor, the HP 20b have a bug. The depreciation schedules give incorrect results. If partial year beginning months are used the results will be inaccurate and not even sum to the value of the asset. Additionally the RBV/ RDV will be off as well. These units also calculate incorrectly when using DBXover. They will calculate the initial accelerated correctly, but when making the change to straight line, the depreciation numbers are off. Declining balance also seems to be off. Perhaps the worst aspect of this: the depreciation does not sum to the value of the asset. Anyone relying on these numbers each year is losing money. HP should be ashamed. Bad numbers for TWO generations of calculators? It's unfortunate because this calculator is excellent in so many other ways. For the sake of credibility you should know that I am not a novice. I verified these numbers against other HP calculators, and other manufacturers. (I own every current model of financial calculator). I'm a financial consultant. This problem has also been reported by other users on HP forums. If you want a menu-driven calculator without any bugs I recommend the TI BAII Pro (which the HP 30B is designed upon) It has most of the functions of the HP 30B. The BA II PRO and the HP 12C are the only calculators accepted for the CFA exam.

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