I don't think hot dog vendors are subject to min wage laws
hot dogs are abundant in supply and cheaper most places, so they have no VALUE that would justify the increased price
service, and its value,, is a bit different matter
lets say you employ ten people to go out and clean homes, you charge customers 50 bucks an hour and each employee works forty hours
that profits you 2000 per week per employee
if you have been paying them 10 hr or 400 a week, that leaves a 1600 profit per employee
so if you raise that to 12 hr or 480 a week, it leaves you still profiting and maybe cutting costs on retention that cover that 80 dollar a week loss
,,,,different than a hot dog
First, it doesn't matter whether it is hot dogs, cars or the service industry.
Second, your example doesn't make any sense. If your paying 10 people $10.00 an hour,that is $100.00 an hour for your 10 employees, which you are only charging your customers $50.00 an hour for....you are now losing $50.00 an hour!
In any case you can not drastically increase your labor cost(in any industry!)without raising the price of the goods or services.