What percentage?
I am not sure and there is no true statistic out there just a bunch of educated guesses.
I do know, I have worked for many.
One a small computer repair shop in the area. We had 5 employees, we grossed about 1.3 million in sales/service, our net was about 250k and with that he had to pay 5 employees and the bills. I was pretty much his right hand man and even though he had a CPA do all his taxes and such, he paid nearly 48% in taxes.
Now we really wanted to expand, we had a good game plan, good clients, good products, great store front. Our dream was to open a second location. But we just couldn't, we needed to hire a few more people because we were stretched thin with our current contract clients. With maybe 2 new employees we could get a little extra profit and then migrate to a new store. Anyway... long story short. If he were taxes say 5-8% less he could have afforded to hire some more people and grow, thus hiring more people creating more jobs, etc etc etc
But you dummies are to narrow minded to see this. He wasn't filthy rich and took care of us as good as he could. But to you... He is. And because of your ****ing policies he will never grow and more people will sit at home and the government dole. Hell, he will probably close down eventually because it's an uphill battle. **** you DUmmies.