According to Statista [1], Uber lost $1.46 billion in the third quarter of 2017. And that is a significant increase from losses of just a billion dollars a year earlier. But, gross revenue for Uber reached nearly $10 billion from July to September of this year. Sounds not bad, however, the majority of the money goes to drivers, while uber received $2.0 billion. Which means that Uber spent about $3.5 billion in expenses to earn $2.0 billion in revenue.
[1] https://www.statista.com/chart/12059/uber-revenue-bookings-a...