Yup I added when I should have subtracted and confused markup with profit margin.
http://www.calculatorsoup.com/calculators/financial/margin-calculator.php
Where G is the Gross Profit Margin, P is Profit, R is Revenue, and C is Cost:
G = P / R = ( R - C ) / R
0.8 = ($550-C) / $550
440 = $550 - C
C = $110
/Sigh. Just one of those days.
Fair enough. I think you're still missing the additional cost that comes from the middlemen, namely the distributor and the retailer. I'm not sure if the court numbers include that or not, but there's likely another 44% there (20% from each) since you're not buying direct. While we do have the profit margin, it doesn't really give us the direct cost because we don't have those other figures that factor in to the final street price.
In fact if you do that and assume the distributor and retailer both had a profit margin of 20% in that $550 total then the cost comes out to $70.40. That's really something
If the argument is that Glock makes a lot of money that's definitely true. Could they make less money? Sure. But people keep buying them at the current prices. So until people stop, that change likely won't happen.
You should be able to buy a Glock retail at 175$.
This includes 30% win for Glock and about 30% win for the retailer.
Almost, but I think you made a mistake of doing $110 + $33 + $33 = $176.
But it should be
$110 + $33 + $43 = $186.
The $43 comes from the fact that it should be 30% of ($110+$33) which is $43. The 30% markup changes with each step in the chain since that person's cost is higher than the person before.