costs at mcdonald's tells us another story. and the university of kansas research assistant has done just that. he found that mcdonald's total payroll is about 17.1% of its revenue. so he found that if you double, if you double every salary of every worker at mcdonald's including ceo donald thompson, who makes almost $9 million a year. if you double all that, including that big $9 million salary, and assuming that mcdonald's then decided to pass on every penny of that cost to the consumer, which they wouldn't have to do. but let's just assume that is the way mcdonald's would do that kind of thing. the price of a big mac, and remember you shouldn't be eating big mac's, they're not good for you, but the price of the big mac would increase to $6.46, and that is if you double every salary.