CKK Friday 29 May, page-169

Michael, I can guarantee you that margins will not be anywhere near that high. remember you have to account for all expenses i.e. staff costs, R&D, overheads, marketing etc etc. Business is always more expensive than you think.

The highest margins for any listed company I've ever come across was around 35% and they are few and far between. Most businesses make between 8% and 20% margins. I'd say the median would be around 12-15%. Use that as a more realistic figure.