Quote:

"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 seem to 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. I can actually get a last year depreciation number that is larger than the previous year. 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."

signed by jmartinfinance