There is no rate card based on time/miles so every ride is an arbitrary payout based on a black box algorithm. With Lyft you’re incentivized with streak bonuses for 3 consecutive rides. The 3rd ride is always an awful fare that will lose money and if you decline you lose the bonus for the first two rides. Ride cost has stayed the same for the passenger and payouts have plummeted for drivers.
Anecdotal, but I’ve started gathering data to suggest that Uber/Lyft are capping wages to <$30/hr. When I have high tip passengers I am seemingly throttled with fewer requests and lower fares.