[lotsofpulp]

> what percentage of the revenue should they receive?

Wherever the supply and demand curves intersect.

Otherwise, society is less efficient in allocating resources.

[tomrod]

The deeper question is how much control labor has over its provision of supply (monopoly) and how much control firms have over their demand for labor provisioning (monopsony). Both can be inefficient operators in the Econ 101 view of the world.