Yeah, I know.
There is a huge gap between what the buyer has to pay and what the creator/vendor gets out of it.

From "3 to 1" to "4 to 1" seems about right.

Would I become a vendor? That would be my second income. And taxes on a second income are HUGE in some countries.

Certainly percentages vary, and populartiy of an item is guesswork.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!