See this previous discussion on a fair algorithm for bill splitting, Expectorant: http://news.ycombinator.com/item?id=4259633 http://news.ycombinator.com/item?i

See this previous discussion on a fair algorithm for bill splitting, Expectorant: http://news.ycombinator.com/item?id=4259633 http://news.ycombinator.com/item?id=4259633