Breakeven Point Equation Error - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: Breakeven Point Equation Error (/thread-10297.html) Breakeven Point Equation Error - Carsen - 03-09-2018 03:27 AM In the HP Prime's Help system and User's Guide, they both state that the calculator uses the equation Fixed + Quantity * Cost=Quantity*Sales + Profit in the Break-even Point solver. However, this equation does not yield the same result as the solver nor does it give the correct answer. I believe the correct equation would be similar to Fixed + Quantity * Cost=Quantity * Sales - Profit. In short, the HP Prime gets the correct answer. Only the equation displayed in the help system and the User's Guide is incorrect. I'm pointing this out to help HP. On a side note, thank you HP for this powerful Finance APP! I'm cutting through problems like butter with it. I use the Prime all the time now. Fantastic machine. I also recommended the Prime to a friend of mine and he LOVES it too. RE: Breakeven Point Equation Error - Gene - 03-09-2018 03:47 AM Yep, typo! Of course, the equation is usually written out as: Sales Price * Quantity - Cost * Quantity - Fixed = Profit Might as well present it in an "income statement" format rather than the balance form as shown in the guide. Great catch on the + there. :-) RE: Breakeven Point Equation Error - Tim Wessman - 03-09-2018 08:13 PM Thanks! I've passed it along for correction. Glad you are liking the new finance app. As far as I can tell, it is now the best finance "calculator" ever made by anyone now. RE: Breakeven Point Equation Error - Gene - 03-09-2018 09:22 PM Other than it being larger than my favorite 12c... I am very inclined to agree with you. Although the 10bII+ runs a close (non-RPN) second. The PRIME finance app is VERY well done.