The WNBA isn't a publicly traded company, as you know, so some of this is impossible to answer. But, according to Deloitte, the WNBA's revenues this year are projected to surpass $1 billion, up from $710 million in 2024. There's only 13 teams to split that revenue from, which is less than half of the NBA teams.
I'm not really sure how its a plausible argument that the WNBA, with revenues surpassing one billion dollars in 2025, should be paying max salaries of 225k. It is not consistent with male professional sports leagues in how revenue is split (I am not talking about the gross number), and, even if profitability is the issue people like to talk about, it is still not consistent with how high-valuation and high-revenue companies work anyway. Uber wasn't making a profit in 2022, but their CEO still made over a million dollars + top engineers were making 500k+. There was nothing wrong with that. They did eventually did make a profit.
WNBA is different in financial scale than Uber, but they're clearly still seen as a worthwhile investment. Individual teams' valuations are soaring and expansion is rapidly happening. The NBA owns 42% of the league. If it was in such a terrible financial situation as others make it out to be, and they can barely afford the league, how could that really be happening?
Again, I'm not arguing for similar NBA salaries. But to get 30-40% of the revenue split, up from 8%!!!, would at least be a solid ground for players to stop playing in other leagues year round + make the WNBA a more solidified sport.