Hi just noticed that if you use the percentmargin function from the catalog menu it returns the wrong answer. percentmargin(100,200) gives 100 - it should be 50, percentmarkup(100,200) gives 50 - it should be 100. Both work fine in the finance app.
I thought I'd already responded to this, so apologies if you get it twice. Firstly, thanks for the reply. My point though was that the formulas as described in the manual are switched, Margin is a percentage of sale price, markup a percentage increase from cost. It calculates each correctly in the finance app, but is wrong when you pull these functions in CAS. Also the manual has a typo on the (incorrect) formula. The margin function as written should be 25 not 35. I realize that this function is probably not often used, but it should be correct.