The Tokyo Metropolitan Area has a population of about 35 million (35,000,000).
Only 853 COVID 19 tests were conducted on 27 September. By minimizing their testing efforts, the Japanese are up to their shenanigans again in hopes of convincing the world that they have their house in order and thus the Olympics can proceed in 2021.
However, of those 853 tests, 194 were positive.
That is a positivity rate of about 23%.