Indeed, but when the net is 20% of that it feels pretty misleading (at least to me). "Cut of money the drivers take" being 80%? The wording feels very off
Lyft doesn't take inventory risk, has a fixed fee structure and doesn't perform most of the actual service (the drivers do). If you want to geek out, there are actually some standards for reporting gross vs net, see EITF 99-19 http://www.fasb.org/jsp/FASB/Document_C/DocumentPage?cid=121...
Look at Square's S-1 for example, you won't find the phrase "gross revenue" once in the entire document - revenue = net, and they use "Gross Payment Volume" instead.