This is very cool to see all compiled and easily navigable.
The thing I want to see next would be the sister calculator: what it would take for a business of X size employees, Y revenue, Z other expenses, to increase wages to these standards.
This feels like it would help to close that gap. Give a business owner a concrete path to take. Just saying something is broken isn't going to get it fixed.
Just typing all this I think I have my weekend project lined up.
Thanks MIT!