I think mcdonald ,walmart real world businesses get somewhere around 27% net profit.
the bigger the business the bigger the profit margin.
I think most of the biggest would be 30% net profit smallers 20% net profit.
most never get close to 40% even.
maybe oil companies might get more but very few companies would.
 Herd if you open a restaurant ya need a chain of 12 or so to have a chance to make it.
have any idea how much $$$ it would take to open 12 restaurant ?

The only ones that make 75% is out laws.
Movie scarface with Al Pacino
Movie lord of war with Nicolas Cage
It never ends well ,just ask the millions in prison or in the grave yard.

I would be very very very happy with a legal ,no jail sentence or tombstone Renderosity 50%.

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The Artist that will fight for decades to conquer their media.
Even if you never know their name ,your know their Art.
Dark Sphere Mage Vengeance