$27.50 Fare $6.87 to Driver

Picked up a fare in downtown San Antonio headed to the airport. During the ride he was complaining about the fare so I asked him what it was $27 (something) was his answer. I laughed and told him to guess what I was getting from that. He guessed $22. I laughed again and told him $6.87 (which it was.). The guy left a $9 tip.