Uber's gross bookings for 2016 hit $20 billion, more than doubling from the year prior, according to financial figures the company provided to Bloomberg. Its net revenue, after drivers took their cut, totaled $6.5 billion for the year.
A loss of 43% relative to your gross after costs of services sold, is just horrendous. Uber is losing 14 cents for every $1 paid by Uber customers. High gross sales are great, but somebody in the Uber business seems to have forgotten that the basic idea is to make a profit, or at least, to break even. If you can't do that, and you can't even get close to doing that, then your business model is not sustainable. You need more sales to increase your profits, not increase your losses.