The trend in their Core Platform Contribution Margin ("a useful indicator of the economics of our Core Platform", essentially ignoring all the costs apart from

The trend in their Core Platform Contribution Margin ("a useful indicator of the economics of our Core Platform", essentially ignoring all the costs apart from payments to drivers and restaurants) is not very uplifting: Q1 Q2 Q3 Q4 2017 -8% -0% -3% 9% 2018 18% 15% 9% -3% "We also expect our Core Platform Contribution Margin to decline in the near term due to, among other factors, competition in Ridesharing and planned significant investments in Uber Eats, based upon our long-term growth expectations for Uber Eats. Our Uber Eats Take Rate has declined in recent periods, and may continue to decline, as we onboard large-volume restaurants at a lower service fee and restaurants with lower average basket sizes, and as we invest in more nascent and competitive markets, such as India."