Set fares
Every route has one fare for everyone, in bolivars.
Fare by route
Open Settings, then Fares. Choose a route, type the new fare and the date it starts. The date cannot be in the past, so the trips already counted keep the fare they had. The history stays visible.
The line's fare
If you defined routes later, or a unit has no route yet, your crew count fares at the line's default fare. Changing it prefills the routes you add afterwards, and leaves existing fares as they are.
Who sees it
Crew count each fare at the fare in force. Unit owners and crew see fares but cannot change them.