…Uber Eat’s take rates — or the fee charged to restaurants — fell last year, and San Francisco-based Uber warned rates may continue to be pressured. Even though GrubHub’s rates have increased every year since the Chicago-based company went public, those pressures may hit GrubHub too, Thill cautioned. Still its not all bad news. With a total potential market size of $200 billion in the U.S., food delivery won’t be a “winner-take-all industry,” he said.