I uses 100% as an upper limit. Even a 50% increase would not increase inflation that much.
Just do the math with the chart I posted: that would be an immediate 25%+ increase in cost.
Given that the real inflation rate has been well above 7% for the past year-plus, labor is losing out by the quarter right now, however, so they need a substantial boost just to break even. And of course such a substantial boost increases the inflation that their wages would be chasing after to rise even more. Such is the dog-chasing-tail cycle of inflation.