Giving the 3.5 million workers picking produce on American farms a raise to match the $15 an hour many fast food workers are fighting for sounds unaffordable, right?

Not really. According to University of California-Davis agricultural labor economist Philip Martin, the likely additional cost to American shoppers of that wage hike would be about $20 a year.

“Farmers don’t get much of the retail dollar, and then of course farmers don’t give everything they get to workers,” Martin says. “So it’s fractions times fractions, and you get down to a relatively small share for farmworker wages in retail food cost.” And Martin says that means that raising the wages for farmworkers wouldn’t cost most Americans very much money