I just spend a month in Tokyo, my serviced apartment was around $2,700. Daily lunch via Uber eats was between $12 and $25.
Going out for beers would be from $5 to $11. Eating out also just varied, but usually eating at local restaurants was probably around $15-$20.
Public transport was pretty cheap, usually between $3 and $5. Took a taxi late at night a couple of times, averaged around $25.
(This is all with the current exchange rates)