My point was that the number of people currenlty infected is surely lower than 30%, given that only 2% of the population is already confirmed and testing a suspected case today will return a negative 70% of the time.
But as another commenter said, it's not impossible that there are many other people who had infection which is not currently active.
Using the overall test rate doesn't really help, I think.
FWIW, Queens and Brooklyn (Kings county) are at 50.7% and 48.3% positive tests respectively.
https://covid19tracker.health.ny.gov/views/NYS-COVID19-Track...