Meaning if min wage was doubled then the cost would double. Inversely, if min wage was reduced by half the cost would reduce by half.
Taken to extreme, if you remove the labour cost of the min wage worker, the cost of the product becomes zero.
Or more to the point, the idea that increasing the min wage by double would increase the cost of the goods of services by nearly double is idiotic. It ignores the vast number of other costs involved in the production of said good or service. Only services at the most basic level would come anywhere close to what he said (neighborhood kid shoveling snow for instance). A fast food restaurant has a huge number of other costs associated with making and selling any product. The restaurant alone will cost over 1 million to build, food costs, heating costs, electricity costs, transportation costs, waste etc. Labour is definitely a significant cost, perhaps 30 -40 % in most cases, which means an increase of 20% in Wages would lead to an increase of the COG of 6-8%. Not the nightmare scenario that most seem to make it out to be
Heck the people working there (who are not students living with their parents) would be able to eat there