The $144,146,165 Button
notes.gross.is/post/22958656041/the-144-146-165-button
What Jamie wrote
Valuable buttons indeed, and extremely ugly.
During payment, the user is presented with three default buttons for tipping: 20%, 25%, and 30%.When cabs were cash only, the average tip was roughly 10%. After the introduction of this system, the tip percentage jumped to 22%.