The NBA's' revenue was down by roughly 33 percent during the 20-21 season, which beat their initial projection of a 40 percent drop due to the ongoing COVID-19 pandemic.
The league played most of its regular season with either reduced or limited capacity arenas. During the playoffs, most arenas reopened to near or at full capacity.
The NBA has in the past said that approximately 40 percent of its revenue comes from gate receipts and money spent at and around arenas.