You win idiot of the day award, but I'll answer you anyway.
0 by government fiat, which is what Obama Care is doing.
0 any other way either. Oh, if customers killed off some small businesses because HD and Lowes are superior places to shop, then that's another issue.
FTR: they have helped create jobs and businesses since small contractors do zillions of dollars of business with HD, buying and selling, to their mutual beneift.
You should go back and learn some basic economics.