Sure, I said 50% revenues. Expenses are taken out of revenues to get profit. If you want to go in that direction, players have to pay their agents out of their salaries, which is generally at least 10%.
I'm also not sure why it not being "50% net" is relevant--yes, the 30 owners aren't netting as much as the 450 players, but each one of them is making far more than any player. The players are also the ones actually producing what people want to see. The owners are making a hefty amount of money from providing the venue. Also, in many cases, owners don't have to pay for stadiums. While that may be starting to change, generally stadiums are tax-payer funded and many times the team owners are the ones who profit from other, non-basketball uses of the stadium.
IMO, owners are getting a pretty nice deal.