$20 r/t from Fresno to Yosemite Valley including entrance fee.
Other routes depart from Merced, Mammoth Lakes and Sonora.
You don't need a permit to enter the park on YARTS, which is why I rode the bus as the permits where sold out the day I needed to be up there.
The Valley had reduced occupancy because of Covid, and the traffic was light and plenty of animals were out and about.
However YARTS accesses Tuolumne Meadows, White Wolf and Mariposa Grove so there service to many trail heads accessing the back country.

No tram service in the Valley or Glacier Point this year though.

Put your LF kit in a backpack and you'll fit right in!