That's actually rather easy if you work for a publicly traded corp, at least to ballpark it.
Company profits / total workers. (<-this seems facile, what am I missing?)
OTOH, beware comparisons of pay scales.
"CEOs make too much!"
Do the math. CEO pay is typically 1/100th of a penny earned, sometimes 1/1000th, not a drop in the bucket. Don't matter. When I was a kid, sports star pay was the thing to rage about. LOL, haven't seen a single lemming comment about that. Whatever.
"I don't make enough!"
And that's very likely true, but you cost far more than you think. Good rule of thumb? Double your pay, that's what you actually cost. You make $15/hr.? Company probably pays $30, or a bit more. Company has to pay worker's comp insurance, taxes, benefits, unemployment insurance, payroll processing fees, all that and more.
SOURCE: Worked IT for a payroll company, got the inside scoop.